Go Math Answer Key

Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 3 Lesson 9 Dividing by 10, 11, and 12 to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 3 Lesson 9 Dividing by 10, 11, and 12

Divide

Question 1.
144 ÷ 12 = 12
Answer:
144 ÷ 12 = 12.

Explanation:
Quotient of:
144 ÷ 12 = 12.

Question 2.
55 ÷ 11 = ___
Answer:
55 ÷ 11 = 5.

Explanation:
Quotient of:
55 ÷ 11 = 5.

Question 3.
24 ÷ 12 = ____
Answer:
24 ÷ 12 = 2.

Explanation:
Quotient of:
24 ÷ 12 = 2.

Question 4.
77 ÷ 11 = ____
Answer:
77 ÷ 11 = 7.

Explanation:
Quotient of:
77 ÷ 11 = 7.

Question 5.
33 ÷ 11 = ____
Answer:
33 ÷ 11 = 3.

Explanation:
Quotient of:
33 ÷ 11 = 3.

Question 6.
100 ÷ 10 = ___
Answer:
100 ÷ 10 = 10.

Explanation:
Quotient of:
100 ÷ 10 = 10.

Question 7.
Greg is baking apple pies for a bake sale. He uses 10 apples in each pie. How many pies can he make with 60 apples?
Answer:
Number of pies he can make with 60 apples = 6.

Explanation:
Number of apples in each pie he uses = 10.
Number of apples = 60.
Number of pies he can make with 60 apples = Number of apples ÷ Number of apples in each pie he uses
= 60 ÷ 10
= 6.

Question 8.
Lewis is putting 30 red chairs and 42 blue chairs in rows. He wants 12 chairs in each row. How many rows will he make?
Answer:
Number of rows he makes = 6.

Explanation:
Number of red chairs Lewis is putting in rows = 30.
Number of blue chairs Lewis is putting in rows = 42.
Number of chairs in each row = 12.
Number of rows he makes = (Number of red chairs Lewis is putting in rows + Number of blue chairs Lewis is putting in rows) ÷ Number of chairs in each row
= (30 + 42) ÷ 12
= 72 ÷ 12
= 6.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 2 Lesson 3 Subtracting existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 2 Lesson 3 Subtracting

Solve

Subtract.

Question 1.

Answer:
The difference of 19 and 16 i 3
So, 19 – 16 = 3.

Question 2.

Answer:

Explanation:
The difference of 8 and 6 is 2.

Question 3.

Answer:

Explanation:
The difference of 10 and 10 is 0.

Question 4.

Answer:

Explanation:
The difference of 12 and 1 is 11.

Question 5.

Answer:

Explanation:
The difference of 13 and 3 is 10.

Question 6.

Answer:

Explanation:
The difference of 8 and 4 is 4.

Question 7.

Answer:

Explanation:
The difference of 18 and 12 is 6.

Question 8.

Answer:

Explanation:
The difference of 17 and 5 is 12.

Question 9.
Read the problem. Decide if you should add or subtract to solve it. Explain how you know.
Damon has 15 balloons. He pops 4. How many balloons are left?
_______________________
Answer:

Explanation:
Damon has 15 balloons
He pops 4
We need to subtract to find the number of balloons left
The difference of 15 and 4 is 11
So, 4 balloons are left.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 2 Lesson 4 Finding a Missing Addend existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 2 Lesson 4 Finding a Missing Addend

Solve

Subtract. Write the difference. Then write the missing addend in the box.

Question 1.
14 + = 17

Question 2.
+ 3 = 5
Answer:
2 + 3 = 5

Explanation:
The difference of 5 and 3 is 2
So, the missing number is 2.

Question 3.
13 + = 18

Answer:
13 + 5 = 18

Explanation:
The difference of 18 and 13 is 5
So, the missing number is 5.

Question 4.
7 + = 8

Answer:
7 + 1 = 8

Explanation:
The difference of 8 and 7 is 1
So, the missing number is 1.

Question 5.
10 + = 14

Answer:
10 + 4 = 14

Explanation:
The difference of 14 and 10 is 4
So, the missing number is 4.

Question 6.
+ 3 = 9

Answer:
6 + 3 = 9

Explanation:
The difference of 9 and 3 is 6
So, the missing number is 6.

Question 7.
Read the problem. Write the addition sentence you would use to help find the missing addend.
Uma and John planted 8 seeds. Uma planted 3 of the seeds. How many seeds did John plant?
Answer:

3 + 5 = 8

Explanation:
Uma and John planted 8 seeds
Uma planted 3 of the seeds
The difference of 8 and 3 is 5
So, John planted 5 seeds.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 2 Lesson 5 Fact Families existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 2 Lesson 5 Fact Families

Solve

Complete the fact family.

Question 1.
14 + 3 = 17
3 + 14 = 17
17 – 14 = 3
17 – 3 = 14

Question 2.
19 – 3 = ____
___ – ____ = ____
___ + ____ = ____
___ + ____ = ____
Answer:
19 -3 = 16
19 – 16 = 3
16 + 3 = 19
3 + 16 = 19

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 19, 3 and 16.

Question 3.
Write the fact family that includes 9, 3, and 6.
__ + __ = __ – __ = __
__ + __ = __ – __ = __
Answer:
6 + 3 = 9
3 + 6 = 9
9 – 3 = 6
9 – 6 = 3

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 9, 3 and 6.

Question 4.
Write the fact family that includes 8, 7, and 1.
__ + __ = __ __ – __ = ___
__ + __ = __ __ – __ = ___
Answer:
1 + 7 = 8
7 + 1 = 8
8 – 1 = 7
8 – 7 = 1

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 8, 7 and 1.

Question 5.
The sums are 6. One difference is 2. What is the third number of this fact family?
Answer:
4 is the other number in this fact family

Explanation:
Given that sums are 6
One number is 2
So, subtract 2 from 6
The other number is 4.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 2 Lesson 6 Problem Solving existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 2 Lesson 6 Problem Solving

Solve.

Use objects to help you solve these problems.

Question 1.
There are 6 green frogs, 11 spotted frogs, and 1 brown frog in a pond. How many frogs are there in all? Use ( ) to show two ways to group the addends.
6 + 11 + 1 = 6 + 11 + 1
6 + 11 + 1 = ____
____ + ____ = ____
Answer:
6 + 12 = 18
17 + 1 = 18

Explanation:
There are 6 green frogs, 11 spotted frogs, and 1 brown frog in a pond
The two ways to group the addends is
(6 + 11) + 1
17+ 1 = 18
And
6 + (11 + 1)
6 + 12 = 18
So, There are 18 frogs in all.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 2 Test existing for free of cost.

McGraw-Hill Math Grade 3 Chapter 2 Test Answer Key

Add. Write the sum.

Question 1.
6 + 2 = ___
2 + 6 = ___
Answer:
6 + 2 = 8
2 + 6 = 8

Explanation:
The numbers that we add are called addends
The order of the addends does not matter
The sum does not change
So, 6 + 2 = 2 + 6.

Question 2.
14 + 4 = ___
4 + 14 = ___
Answer:
14 + 4 = 18
4 + 14 = 18

Explanation:
The numbers that we add are called addends
The order of the addends does not matter
The sum does not change
So, 14 + 4 = 4 + 14.

Question 3.

Answer:

Explanation:
The order of the addends does not matter
The sum does not change
So, 13 + 6 = 6 + 13.

Question 4.

Answer:

Explanation:
The order of the addends does not matter
The sum does not change
So, 3 + 12 = 12 + 3.

Write the missing number.

Question 5.
12 + 7 = ___ + 12
Answer:
12 + 7 = 7 + 12

Explanation:
The order of the addends does not matter
The sum does not change
The missing number is 7
So, 12 + 7 = 7 + 12.

Question 6.
3 + 6 = 6 + ___
Answer:
3 + 6  = 6 + 3

Explanation:
The order of the addends does not matter
The sum does not change
The missing number is 3
So, 3 + 6 = 6 + 3.

Question 7.
___ + 4 = 4 + 11
Answer:
11 + 4 = 4 + 11

Explanation:
The order of the addends does not matter
The sum does not change
The missing number is 11
So, 11+ 4 = 4 + 11.

Add. Be sure to add the numbers in ( ) first.

Question 8.
2 + (4 + 3)
2 + ___ = ____
(2 + 4) + 3 =
___ + 3 = ___
Answer:
2 + 4 + 3 = 9

Explanation:
2 + (4 + 3) =
2 + 7 = 9
(2 + 4) + 3 =
6 + 3 = 9
So, 2 + 4 + 3 = 9.

Question 9.
(1 + 3) + 11 =
___ + 11 = ___
1 + (3 + 11) =
1 + ___ = ____
Answer:
1 + 3 + 11 = 15

Explanation:
(1 + 3) + 11 =
4 + 11 = 15
1 + (3 + 11) =
1 + 14 = 15
So, 1 + 3 + 11 = 15.

Question 10.
7 + (10 + 1) =
7 + ___ = ___
(7 + 10) + 1 = ___
___ + 1 = ___
Answer:
7 + 10 + 1 = 18

Explanation:
7 + (10 + 1) =
7 + 11 = 18
(7 + 10) + 1 =
17 + 1 = 18
So, 7 + 10 + 1 = 18.

Question 11.
Use objects to help you solve this problem. Karen has a sheet of stickers. There are 14 green stickers, 2 gold stickers, and 3 red stickers on the sheet. How many stickers are there in all? Use ( ) to show two ways to group the addends.
14 + 2 + 3 = ____________
____ + ____ = ____ stickers
14 + 2 + 3 = ____________
___ + ____ = ___ stickers
Answer:
14 + 2 + 3 = 19 stickers

Explanation:
Karen has a sheet of stickers
There are 14 green stickers, 2 gold stickers, and 3 red stickers on the sheet
I grouped the number using ( ) to solve
14 + (2 + 3) =
14 + 5 = 19 stickers
(14 + 2) + 3 =
16 + 3 = 19 stickers
There are 19 stickers in all with Karen.

Subtract.

Question 12.

Answer:

Explanation:
The difference of 17 and 3 is 14.

Question 13.

Answer:

Explanation:
The difference of 9 and 1 is 8.

Question 14.

Answer:

Explanation:
The difference of 16 and 4 is 12.

Question 15.

Answer:

Explanation:
The difference of 7 and 6 is 1.

Question 16.

Answer:

Explanation:
The difference of 20 and 10 is 10.

Question 17.

Answer:

Explanation:
The difference of 14 and 14 is 0.

Question 18.

Answer:

Explanation:
The difference of 15 and 4 is 11.

Question 19.

Answer:

Explanation:
The difference of 17 and 12 is 5.

Subtract. Write the difference. Then write the missing addend in the box.

Question 20.
11 + = 13

Answer:
11 + 2 = 13

Explanation:
The difference of 13 and 11 is 2
So, the missing number is 2.

Question 21.
15 + = 19

Answer:
15 + 4 = 19

Explanation:
The difference of 19 and 15 is 4
So, the missing number is 4.

Complete each fact family.

Question 22.
2 + 6 = ___
____ + ___ = ____
____ – ___ = ____
____ – ___ = ____
Answer:
2 + 6 = 8
6 + 2 = 8
8 – 2 = 6
8 – 6 = 2

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 2, 6 and 8.

Question 23.
13 – 3 = ___
____ – ___ = ____
____ + ___ = ____
____ + ___ = ____
Answer:
13 – 3 = 10
13 – 10 = 3
10 + 3 = 13
3 + 10 = 13

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 13, 3 and 10.

Question 24.
Write the fact family that includes 17, 6, and 11.
__ + __ = __ __ – __ = ____
__ + __ = __ __ – __ = ____
Answer:
11 + 6 = 17
6 + 11 = 17
17 – 6 = 11
17 – 11 = 6

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 17, 6 and 11.

Question 25.
Write the fact family that includes 19, 9, and 10.
__ + __ = __ __ – __ = ____
__ + __ = __ __ – __ = ____
Answer:
9 + 10 = 19
10 + 9 = 19
19 – 9 = 10
19 – 10 = 9

Explanation:
Some addition and subtraction facts use the same numbers
They are called fact family
I wrote the fact family for the numbers 19, 9 and 10.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Pretest existing for free of cost.

Choose the correct term from the box to complete the sentence.

Ones
hundreds
tens
hundred thousands

Question 1.
The value of the underlined digit in 10,358 is 5 ____
Answer:
The value of the underlined digit in 10,358 is 5 tens.

Question 2.
The value of the underlined digit is 514,222 is 5 ____
Answer:
The value of the underlined digit is 514,222 is 5 hundred thousands.

Question 3.
The value of the underlined digit is 75 is 5 ____
Answer:
The value of the underlined digit is 75 is 5 ones.

Question 4.
The value of the underlined digit is 1,599 is 1 ____
Answer:
The value of the underlined digit is 1,599 is 1 thousand.

Write each number in standard form.

Question 5.
400,000 + 20,000 + 8,000 +4
Answer:
428,004

Explanation:
The standard for the given number is 428,004.

Question 6.
five hundred thirty-three
Answer:
533

Explanation:
The standard for the given number is 533.

Question 7.
50,000 + 6,000 + 700 + 80 + 9
Answer:
56,789

Explanation:
The standard for the given number is 56,789.

Question 8.

Answer:
1,204

Explanation:
The above place value blocks represents the number 1,204
There is 1 thousand cube, 2 hundred blocks and 4 ones cubes.

Write the numbers from greatest to least.

Question 9.
370 37 317
_________
Answer:
370, 317, 37

Explanation:
I arranged the given numbers from greatest to least
370 is greatest and 37 is least number.

Question 10.
5,029 5,229 5,209
Answer:
5,229, 5,209, 5,029

Explanation:
I arranged the given numbers from greatest to least
5,229 is greatest and 5,209 is least number.

Question 11.
What digit must be in the hundreds place of all numbers between 1,299 and 1,400? Circle the numeral.
2 3 4
Answer:

Explanation:
3 is the digit that must be in the hundreds place of all the number between 1,299 and 1,400.
Example: 1300, 1350, 1399.

Question 12.
Name three numbers that change to 50 when rounded to the nearest 10.
Answer:
45, 52, 49

Explanation:
I wrote the three numbers that change to 50 when rounded of to nearest 10
In 45 and 49, ones digit is equal to or greater than 5 and we can round it to next tens that is 50
In 52, ones digit is less than 5 and we can round it to the same tens that is 50.

Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 3 Test to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Chapter 3 Test Answer Key

Multiply.
Question 1.
10 × 4 = ____
Answer:
Multiplying 10 by 4 we get the product 40.

Explanation:
Product of:
10 × 4 = 40.

Question 2.
9 × 5 = ___
Answer:
Multiplying 9 by 5 we get the product 45.

Explanation:
Product of:
9 × 5 =45.

Question 3.
8 × 8 = ____
Answer:
Multiplying 8 by 8 we get the product 64.

Explanation:
Product of:
8 × 8 = 64.

Question 4.
3 × 11 = ___
Answer:
Multiplying 3 by 11 we get the product 33.

Explanation:
Product of:
3 × 11 = 33.

Question 5.
2 × 8 = ___
Answer:
Multiplying 2 by 8 we get the product 16.

Explanation:
Product of:
2 × 8 = 16.

Question 6.
6 × 6 = ____
Answer:
Multiplying 6 by 6 we get the product 36.

Explanation:
Product of:
6 × 6 = 36.

Question 7.
2 × 6 = ___
Answer:
Multiplying 2 by 6 we get the product 12.

Explanation:
Product of:
2 × 6 = 12.

Question 8.
7 × 3 = ___
Answer:
Multiplying 7 by 3 we get the product 21.

Explanation:
Product of:
7 × 3 = 21.

Question 9.
12 × 9 = ___
Answer:
Multiplying 12 by 9 we get the product 108.

Explanation:
Product of:
12 × 9 = 108.

Divide.
Question 10.
48 ÷ 6 = ___
Answer:
Dividing 48 by 6 we get quotient 8.

Explanation:
Quotient of:
48 ÷ 6 = 8.

Question 11.
81 ÷ 9 = __
Answer:
Dividing 81 by 9 we get quotient 9.

Explanation:
Quotient of:
81 ÷ 9 = 9.

Question 12.
120 ÷ 10 = ___
Answer:
Dividing 120 by 10 we get quotient 12.

Explanation:
Quotient of:
120 ÷ 10 = 12.

Question 13.
32 ÷ 8 = __
Answer:
Dividing 32 by 8 we get quotient 4.

Explanation:
Quotient of:
32 ÷ 8 = 4.

Question 14.
9 ÷ 3 = ___
Answer:
Dividing 9 by 3 we get quotient 3.

Explanation:
Quotient of:
9 ÷ 3 = 3.

Question 15.
24 ÷ 12 = ____
Answer:
Dividing 24 by 12 we get quotient 2.

Explanation:
Quotient of:
24 ÷ 12 = 2.

Question 16.
63 ÷ 7 = ___
Answer:
Dividing 63 by 7 we get quotient 9.

Explanation:
Quotient of:
63 ÷ 7 = 9.

Question 17.
28 ÷ 4 = ___
Answer:
Dividing 28 by 4 we get quotient 7.

Explanation:
Quotient of:
28 ÷ 4 = 7.

Question 18.
25 ÷ 5 = ___
Answer:
Dividing 25 by 5 we get quotient 5.

Explanation:
Quotient of:
25 ÷ 5 = 5.

Solve. Show the equation you used to find the answer.
Question 19.
Anna spent $40 on movie tickets for herself and her friends. She bought 8 tickets in all. How much does I ticket cost?
Answer:
Cost of each ticket = $5.

Explanation:
Cost of movie tickets Anna spent for herself and her friends = $40.
Number of tickets she bought = 8.
Cost of each ticket = Cost of movie tickets Anna spent for herself and her friends ÷ Number of tickets she bought
= $40 ÷ 8
= $5.

Question 20.
Mr. Park’s fourth grade class is going on a field trip. He wants to put the 24 students in his class into 6 equal groups. How many students should he put in each group?
Answer:
Number of students he puts in each group = 4.

Explanation:
Number of students in his class = 24.
Number of groups = 6.
Number of students he puts in each group = Number of students in his class ÷ Number of groups
= 24 ÷ 6
= 4.

Question 21.
Jamie wants to count her button collection. She makes 7 rows with 5 buttons in each row. How many buttons does she have in all?
Answer:
Number of buttons she have in all = 35.

Explanation:
Number of rows she makes = 7.
Number of buttons in each row = 5.
Number of buttons she have in all = Number of rows she makes × Number of buttons in each row
= 7 × 5
= 35.

Question 22.
Explain how knowing that 9 × 7 = 63 can help you solve 63 ÷ 7.
Answer:
9 × 7 = 63.
=> 63 ÷ 7 = 9.

Explanation:
Product of:
9 × 7 = 63.
=> 63 ÷ 7 = 9.

Question 23.
Mitchell writes 4 × 5 to describe the position of the desks in the classroom. Catie writes 5 × 4. Who is correct? Explain.
Answer:
Both are correct because rows × columns or columns × rows = same.

Explanation:
Product of:
4 × 5 = 20.
5 × 4 = 20.

Identify the property shown in each number sentence.
Question 24.
129 × 1 = 129
_________
Answer:
129 × 1 = 129.
Multiplication property.

Explanation:
129 × 1 = 129.
=> Product of 129 × 1 = 129.

Question 25.
(8 + 4) × 5 = (8 × 5) + (4 × 5)
Answer:
(8 + 4) × 5 = (8 × 5) + (4 × 5).
Distributive property strategy.

Explanation:
(8 + 4) × 5 = (8 × 5) + (4 × 5)
According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

Question 26.
(3 × 24) × 8 = 3 × (24 × 8)
Answer:
(3 × 24) × 8 = 3 × (24 × 8)
Associative property of multiplication strategy.

Explanation:
(3 × 24) × 8 = 3 × (24 × 8)
This law simply states that with addition and multiplication of numbers, you can change the grouping of the numbers in the problem and it will not affect the answer.

Question 27.
8 × 50 = 50 × 8
Answer:
8 × 50 = 50 × 8.
Commutative property of multiplication strategy.

Explanation:
8 × 50 = 50 × 8.
The commutative property is a math rule that says that the order in which we multiply numbers does not change the product.

Question 28.
102 × 25 = 25 × 102
Answer:
102 × 25 = 25 × 102.
Commutative property of multiplication strategy.

Explanation:
102 × 25 = 25 × 102.
The commutative property is a math rule that says that the order in which we multiply numbers does not change the product.

Question 29.
15 × 9 = (10 × 9) + (5 × 9)
Answer:
15 × 9 = (10 × 9) + (5 × 9)
Distributive property of multiplication.

Explanation:
15 × 9 = (10 × 9) + (5 × 9)
Because we are breaking apart the objects in each group. We need to add them back together to get the total product five times seven that’s five equal groups with seven objects in each group.

Use a multiplication property to solve.

Question 30.
(12 + 4) × 6 = ___
Answer:
(12 + 4) × 6 = 96.

Explanation:
(12 + 4) × 6 = (12 × 6) + (4 × 6)
= 72 + 24
= 96.

Question 31.
404 × 1 = ___
Answer:
404 × 1 = 404.

Explanation:
404 × 1 =1 × 404
= 404.

Use each rule to fill in the chart.
Question 32.

Answer:

Explanation:
y = 2
=> y × 5 = 2 × 5 = 10.
y = 4.
=> y × 5 = 4 × 5 = 20.
y = 6
=> y × 5 = 6 × 5 = 30.
y = 8
=> y × 5 = 8 × 5 = 40.
y = 10
=> y × 5 = 10 × 5 = 50.

Question 33.

Answer:

Explanation:
c = 2
=> c × 2 = 2 × 2 = 4.
c = 5
=> c × 2 = 5 × 2 = 10.
c = 8
=> c × 2 = 8 × 2 = 16.
c = 11
=> c × 2 = 11 × 2 = 22.
c = 12
=> c × 2 = 12 × 2 = 24.

Question 34.

Answer:

Explanation:
x = 99
=> x ÷ 9 = 99 ÷ 9 = 11.
x = 81
=> x ÷ 9 = 81 ÷ 9 = 9.
x = 54
=> x ÷ 9 = 54 ÷ 9 = 6.
x = 27
=> x ÷ 9 = 27 ÷ 9 = 3.
x = 9
=> x ÷ 9 = 9 ÷ 9 = 1.

Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 3 Lesson 11 Problem Solving: Draw a Picture and Write an Equation to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 3 Lesson 11 Problem Solving: Draw a Picture and Write an Equation

Solve

Draw a picture and write an equation to solve each problem.

Question 1.
Jessica read 3 books every month. How many books did she read in 6 months?
3 × 6 = 18 books
Answer:
Number of books she read in 6 months = 18.

Explanation:
Number of books Jessica read every month = 3.
Number of months she read = 6.
Number of books she read in 6 months = Number of books Jessica read every month × Number of months
= 3 × 6
= 18.

Question 2.
Hector has 121 coins in his collection. He can fit 11 in a display case. How many display cases will he need to display his entire collection?
Answer:
Number of display cases he needs to display his entire collection = 11.

Explanation:
Number of coins in his collection Hector has = 121.
Number of coins in a display case he can fit = 11.
Number of display cases he needs to display his entire collection = Number of coins in his collection Hector has ÷ Number of coins in a display case he can fit
= 121 ÷ 11
= 11.

Question 3.
Jim is planting a garden with 5 seeds in each row. If he plants 40 seeds in all, how many rows are in Jim’s garden?
Answer:
Number of rows are in Jim’s garden =  8.

Explanation:
Number of seeds in each row Jim is planting a garden = 5.
Total seeds in all he plants = 40.
Number of rows are in Jim’s garden = Total seeds in all he plants ÷ Number of seeds in each row Jim is planting a garden
= 40 ÷ 5
= 8.

Practice the questions of McGraw Hill Math Grade 4 Answer Key PDF Chapter 3 Lesson 10 Multiplication and Division Patterns to secure good marks & knowledge in the exams.

McGraw-Hill Math Grade 4 Answer Key Chapter 3 Lesson 10 Multiplication and Division Patterns

Multiply or Divide
Use the rule to fill in the chart.
Question 1.

Answer:

Explanation:
y = 3
=> y × 9 = 3 × 9 = 27.
y = 4
=> y × 9 = 4 × 9 = 36.
y = 5
=> y × 9 = 5 × 9 = 45.

Question 2.

Answer:

Explanation:
c = 5
=> c ×12 = 5 × 12 = 60.
c = 6
=> c ×12 = 6 × 12 = 72.
c = 7
=> c ×12 = 7 × 12 = 84.

Question 3.

Answer:

Explanation:
x = 50
=> x ÷ 5 = 50 ÷ 5 = 10.
x = 40
=> x ÷ 5 = 40 ÷ 5 = 8.
x = 30
=> x ÷ 5 = 30 ÷ 5 = 6.

Identify the rule that explains the chart.
Question 4.

Answer:
Division rule is used in the chart.

Explanation:
x = 120.
=> x  ÷  ?? = 12
=> 120 ÷ ?? = 12
=> ?? = 120 ÷ 12
=> ?? = 10.
x = 100.
=> x  ÷  ?? = 10
=> 100 ÷ ?? = 10
=> ?? = 100 ÷ 10
=> ?? = 10.
x = 80.
=> x  ÷  ?? = 8
=> 80 ÷ ?? = 8
=> ?? = 80 ÷ 8
=> ?? = 10.

Question 5.

Answer:
Division rule is used in the chart.

Explanation:
y = 120.
=> y  ÷  ?? = 11
=> 77 ÷ ?? = 11
=> ?? = 77 ÷ 11
=> ?? = 7.
y = 56.
=> y  ÷  ?? = 8
=> 56 ÷ ?? = 8
=> ?? = 56 ÷ 8
=> ?? = 7.
y = 42.
=> y  ÷  ?? = 6
=> 42 ÷ ?? = 6
=> ?? = 42 ÷ 6
=> ?? = 7.

Question 6.

Answer:
Multiplication rule is used in the chart.

Explanation:
c = 3
=> c × ?? = 6
=> 3 × ?? = 6
=> ?? = 6 ÷ 3
=> ?? = 2.
c = 6
=> c × ?? = 12
=> 6 × ?? = 12
=> ?? = 12 ÷ 6
=> ?? = 2.
c = 9
=> c × ?? = 18
=> 9 × ?? = 18
=> ?? = 18 ÷ 9
=> ?? = 2.