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Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 6 Arrays and Number Sentences will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 3 Lesson 6 Arrays and Number Sentences

Write a Number Sentence

Write a number sentence to tell what each array shows.

Question 1.

2 + 2 + 2 = 6

Question 2.

___ + ____ = ____
Answer: 5 + 5 = 10
There are two rows and five columns of birds.
Total = 5 + 5 = 10

Question 3.

___ + ____ = ____
Answer:
There are two rows and four columns
4 + 4 = 8

Question 4.

Answer:
There are 5 rows and 5 columns.
5 + 5 + 5 + 5 + 5 = 25

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 5 Arrays will engage students and is a great way of informal assessment.

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

Add

Look at the array. Write the sum.

Question 1.

3 + 3 = 6 basketballs

Question 2.

5 + 5 + 5 = ___ fish
Answer: 5 + 5 + 5 = 15 fish
3 × 5 = 15

Question 3.

5 + 5 + 5 + 5 + 5 = ___ paperclips
Answer: 5 + 5 + 5 + 5 + 5 = 25 paperclips
5 × 5 = 25 paperclips

Question 4.

6 + 6 = ___ cars
Answer:
6 + 6 = 12 cars
2 × 6 = 12 cars

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 4 Counting by 5s will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 3 Lesson 4 Counting by 5s

Count

Circle the objects into groups of five. Then count by 5s. Write the numbers.

Question 1.

Answer:
Apples are divided into 3 groups and each group has 5 apples.

Question 2.

_________ _____ _____ _____
Answer:

_________5_____                 _____10_____        ______15_________       ______20________
There are 20 pencils.
Pencils are divided into 4 groups and each group has 5 pencils

Question 3.

____ ____ ____ ___ ____
Answer:

_______5_______      _______10_____    _____15_______    _______20______   _______25______
There are 25 lemons
There are 5 groups and each group is divided into 5 lemons.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 3 Even and Odd Sums will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 3 Lesson 3 Even and Odd Sums

Identify

Write the sum. Tell if the sum is even or odd.

Question 1.
5 + 5 = 10 even

Question 2.
12 + 7 = ____ ____
Answer:
12 + 7 = 19
19 is an odd number. It is not divisible by 2.

Question 3.
6 + 8 = ____ ____
Answer:
6 + 8 = 14
14 is an even number.

Question 4.
5 + 9 = ____ _____
Answer:
5 + 9 = 14
14 is an even number.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 2 Counting by 2s will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 3 Lesson 2 Counting by 2s

Count

Circle pairs of objects to count by 2s. Write the numbers.

Question 1.

Answer:
Count each object by 2s
There are 8 lemons in the above figure.

Question 2.

________ _____________ _________ _____________ _________ ____________
Answer:

____2____ ______4_______ ____6_____ ___8_____    ____10_____ ____12____
Count each object by 2s
There are 12 stars in the above figure.

Question 3.

_____  _____ ________ ____________ _____________ _____________ _____________ __________ _______
Answer:

_____2_____ ___4_____ ____6____ _____8___  ____10_____ ____12___ ____14___   __16_____
Count each object by 2s
There are 16 buttons in the above figure.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 1 Even and Odd Numbers will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 3 Lesson 1 Even and Odd Numbers

Identify

Check to see if a number is odd or even. Use paper clips or other small objects. Then circle odd or even.

Question 1.
4 odd
Answer:
4 is an even number because it is divisible by 2 and leaves the remainder as 0.

Question 2.
13 odd even
Answer:
13 is an odd number because it is not divisible by 2.

Question 3.
7 odd even
Answer:
7 is an odd number because it is not divisible by 2.

Question 4.
10 odd even
Answer:
10 is an even number because it is divisible by 2 and leaves the remainder as 0.

Question 5.
8 odd even
Answer:
8 is an even number because it is divisible by 2 and leaves the remainder as 0.

Question 6.
19 odd even
Answer:
19 is an odd number because it is not divisible by 2.

All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 1 Test are as per the latest syllabus guidelines.

McGraw-Hill Math Grade 5 Chapter 1 Test Answer Key

Question 1.
What is the word form of 1,000,432,506?
Answer: The word form of 1,000,432,506 is One Billion Four Hundred and Thirty-Two Thousand Five Hundred and Six.

Question 2.
What does the 2 in 254 represent? __________________________
What does the 2 in 728 represent? __________________________
How does the value of 2 in 254 compare to the value of 2 in 728?
_______________________
Answer:
The value of 2 in 254 represent 2 hundreds or 200.
The value of 2 in 728 represents 2 tens or 20.
The value of 2 in 254 compared to the value of 2 in 728 is different in place value as 2 in 254 is 200 and the value of 2 in 728 is 20.

Question 3.
How does the value of 9 in 5,935 compare to the value of 9 in 9,000? ________
Answer: The value of 9 in 5,935 compared to the value of 9 in 9,000 is different in place value as 9 in 5935 is 900 and 9 in 9000 is 9 thousand.

Question 4.
What is 23 × 10³ in expanded form? __________________________________
What is 23 × 10³ in standard form? ____________________________________
What is 23 × 10³ in shortened word form? __________________________
Answer:
23 × 10³ in expanded form is 23 × 10 × 10 × 10 = 23,000 = Twenty Three Thousand
23 × 10³ in standard form is 23000.
23 × 10³ in shortened word form is 23 Thousand.

Write the standard form of each number.

Question 5.
64 × 10⁴ _______________
Answer:
64 × 10⁴ = 64 × 10 × 10 × 10 × 10 = 640,000
Thus the standard form of 64 × 10⁴ is 640,000.

Question 6.
3,030 ÷ 10³ ______
Answer:
3,030 ÷ 10³ = 3030 ÷ 1000 = 3.030
Thus the standard form of 3,030 ÷ 10³ is 3.030

Question 7.
0 0.5 × 10⁴ ______
Answer:
0.5 × 10⁴ = 0.5 × 10 × 10 × 10 × 10
= 5 × 10 × 10 × 10 = 5000
Thus the standard form of 0.5 × 10⁴ is 5000.

Question 8.
653.5 × 10² ____________
Answer:
653.5 × 10² = 653.5 × 10 × 10 = 65350
Thus the standard form of 653.5 × 10² is 65350

Question 9.
0.43 ÷ 10¹ ____________
Answer:
0.43 ÷ 10 = 0.043
Thus the standard form of 0.43 ÷ 10 is 0.043

Question 10.
0.77 × 10² _____
Answer:
0.77 × 10² = 0.77 × 10 × 10 = 77
Thus the standard form of 0.77 × 10² is 77.

Write the shortened word form of each number.

Question 11.
6.92 __________________________________________
Answer: 6 and 92 hundredths is the shortened word form of 6.92

Question 12.
0.875 _____________________________ __________
Answer: 0 and 875 thousandths is the shortened word form of 0.875

Question 13.
72.7 _____________
Answer: 72 and 7 tenths is the shortened word form of 72.7

Compare the two numbers. Write <, >, or =.

Question 14.
23.00 ______ 2.300
Answer: 23.00 > 2.300
23 is greater than 2.3

Question 15.
2.454 ______ 2.456
Answer: 2.454 < 2.456
2.454 is less than 2.456

Question 16.
11.117 ______ 11.17
Answer: 11.117 < 11.17
11.117 is less than 11.170

Question 17.
0.3 ______ 0.300
Answer: 0.3 = 0.300
0.3 is equal to 0.300

Question 18.
4 ______ 0.004
Answer: 4 > 0.004
4 is greater than 0.004

Question 19.
9.9 ______ 10.01
Answer: 9.9 < 10.01
9.9 is less than 10.01

Round to the nearest tenth.

Question 20.
23.271 _______________
Answer:
23.271
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is greater than 5 so we have to add 1 to the tenths place.
23.271 to the nearest tenth is 23.3

Question 21.
2.445 _______________
Answer:
2.445
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is less than 5.
2.445 to the nearest tenth is 2.4

Question 22.
1.117 ________
Answer:
1.117
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is less than 5.
1.117 to the nearest tenth is 1.1

Round to the nearest hundredth.

Question 23.
23.271 _______________
Answer:
23.271
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number, the thousandths value is less than 5.
23.271 to the nearest hundredth is 23.27

Question 24.
2.445 _______________
Answer:
2.445
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
2.445 to the nearest hundredth is 2.45

Question 25.
1.117 _____
Answer:
1.117
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the thousandth value is greater than 5 so we have to add 1 to the hundredth place.
1.117 to the nearest hundredth is 1.12

Question 26.
The average distance between the Earth and the Sun is 57 million kilometers. What is this number in standard form?
Answer:
Given that
The average distance between the Earth and the Sun is 57 million kilometers
57 million in the standard form can be written as 57,000,000.

Question 27.
In 2011, the population of Mexico City was estimated to be 113,724,226. What is the value of the number to the left of the underlined digit?
__________________________
How does that value compare to the value of the underlined digit?
__________________________
Answer:
Given that,
In 2011, the population of Mexico City was estimated to be 113,724,226.
The value of 1 number to the left of the underlined digit is 10 million.

Question 28.
In July 2009, the reported population of New York City was 8,391,881. What is the value of the number to the right of the underlined digit?
__________________________
How does that value compare to the value of the underlined digit?
__________________________
Answer: The place value of 8,391,881 is 800.

Use the data in the chart for items 29 to 32.

Question 29.
What is the area of Tuvalu? Write the expanded form of this number.

Answer:
Area of Tuvalu = 23.309 sq. km
23.309 in the expanded form is (2 × 10) + (3 × 1) + (3 × \(\frac{1}{10}\)) + (9 × \(\frac{1}{1,000}\))

Question 30.
What is the shortened word form for the area of Monaco?
Answer:
Area of Monaco = 1.812
1.812 in the shortened word form is 1 and 812 thousandths

Question 31.
What is the area of San Marino in word form?
_______________________
Answer:
The area of San Marino 62.159 is Sixty Two and One Hundred Fifty Nine Thousandths.

Question 32.
What is the area of the Marshall Islands rounded to the nearest hundredth?
Answer:
Area of the Marshall Islands = 181.299
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
181.299 to the nearest hundredth is 181.30

Question 33.
Four planes are lined up to take off. One will fly to Atlanta, one to Birmingham, one to Charlotte, and one to Denver. The plane to Birmingham is not the first or the last. The plane to Atlanta is third. The plane to Denver is not the first. In what order will the planes take off?
Answer:
Given,
Four planes are lined up to take off.
One will fly to Atlanta, one to Birmingham, one to Charlotte, and one to Denver.
The plane to Birmingham is not the first or the last. The plane to Atlanta is third.
So, the order is Charlotte, Birmingham, Atlanta, Denver.

All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 1 Lesson 6 Rounding Decimals are as per the latest syllabus guidelines.

McGraw-Hill Math Grade 5 Answer Key Chapter 1 Lesson 6 Rounding Decimals

Round

Round each number to the place of the underlined digit. Plot each number on a number line if you need help.

Question 1.
6.54.3 6.5

5 is in the tenth place.

Question 2.
0.742 ____________
Answer: 0.04
4 is in hundredths place.

Round each number to the place of the underlined digit.

Question 3.
0.345 ____________
Answer: 0.04
4 is in hundredths place.

Question 4.
7.299 _____
Answer: 0.2
2 is in the tenth place.

Question 5.
3.456 ____________
Answer: 3.000
3 is in hundredths place.

Question 6.
3.555 ____________
Answer: 0.05
5 is in hundredths place.

Question 7.
0.989 ____________
Answer: 0.08
8 is in hundredths place.

Question 8.
9.099 ____________
Answer: 0.09
9 is in hundredths place.

Solve.

Question 9.
Sam buys a package of grapes marked 120.284 grams. How much is this to the nearest tenth of a gram?
Answer:
Given,
Sam buys a package of grapes marked 120.284 grams.
120.284 = 120.3 grams
Therefore, Sam buys a package of grapes marked 120.3 grams.

Question 10.
Ron makes acoustic guitars. He is looking for a string with a diameter of 0.0435 mm. What is the diameter of the string rounded to the nearest hundredth?
Answer:
Given,
Ron makes acoustic guitars. He is looking for a string with a diameter of 0.0435 mm.
0.044 mm
The diameter of the string rounded to the nearest hundredth is 0.44 mm.