# McGraw Hill Math Grade 1 Chapters 1–12 Review Test Answer Key

All the solutions provided in McGraw Hill Math Grade 1 Answer Key PDF Chapters 1–12 Review Test as per the latest syllabus guidelines.

Tell how many. Write the number.

Question 1. 11
Explanation:
There are green dots in the 20 blocks
so, 11 dots are there

Question 2. 14
Explanation:
2 cube sticks of 5
and 1 cube stick of 4
10 + 4 = 14

Add to find how many. Use the number line to help. Question 3. 11 + 6 = _____________ in all 17
Explanation:
11 + 6 = 17 in all
The sum of 11 yellow stars and 6 blue stars = 17 stars.

Question 4. 4 + 4 = ______________ in all
8 Explanation:
4 + 4 = 8 in all
The sum of 4 and 4 is 8

Question 5.
11 + 3 = ____________
14
Explanation: The sum of 11 and 3 is 14
11 + 3 = 14

Question 6.
Joe has . Luis has 3 . How many in all?
4 + 3 = __________ 7 Explanation:
4 + 3 = 7
Number of books that Joe has 4 .
Number of books that Luis has 3 .
The sum of 4 and 3 is 7

Question 7.
18 + 2 = ____________
20
Explanation: 18 + 2 = 20
The sum of 18 and 2 is 20.

Question 8.
There is 1 air. There are 7 on the floor. How many in all?
1 + 7 = _____________ 8 Explanation:
Number of aero planes in air is 1
Number of aero planes in floor is 7
The sum of 1 and 7 is 8.

Subtract. Write the difference.

Use the number line to help. Question 9. 6 – 6 = ____________
0 Explanation:
The difference of 6 and 6 is 0
There are 6 orange circle balls,
out of 6 balls all the balls are used,
so, 0 balls are remaining.

Question 10. 4 – 1 = ____________
3
Explanation:
The difference of 4 and 1 is 3
4 – 1 = 3

Question 11. 5 – 4 = ____________
1
Explanation:
The difference of 5 and 4 is 1
5 – 4 = 1

Question 12. 3 – 1 = _____________
2
Explanation:
The difference of 3 and 2 is 1
3 – 2 = 1

Subtract to find the difference.

Question 13.
17 – 17 = ___________
0
Explanation:
The difference of 17 and 17 is 0
17 – 17 = 0

Question 14.
5 – 0 = ___________
5
Explanation:
The difference of 5 and 0 is 5
5 – 0 = 5

Question 15.
9 – 1 = ___________
8
Explanation:
The difference of 9 and 1 is 8
9 – 1 = 8

Question 16.
7 – 6 = ___________
1
Explanation:
The difference of 7 and 6 is 1
7 – 6 = 1

Question 17.
12 – 9 = ___________
3
Explanation:
The difference of 12 and 9 is 3
12 – 9 = 3

Question 18.
19 – 17 = ___________
2
Explanation:
The difference of 19 and 17 is 2

Question 19.
15 – 8 = ___________
7
Explanation:
The difference of 15 and 8 is 7
15 – 8 = 7

Question 20.
11 – 9 = ___________
2
Explanation:
The difference of 11 and 9 is 2
11 – 9 = 2

Solve. Write the difference.

Question 21.
There are 20 in a garden. Will pulls up 3 . How many are left in the garden?
20 – 3 = ____________ 20 – 3 = 17 Explanation:
Total number of carrots in the garden = 20
Number of carrots plucked = 3
20 – 3 = 17

Question 22.
Cora counted 9 in the garden. 8 flew away. How many are still in the garden?
9 – 8 = _________ 9 – 8 = 1 Explanation:
Total number of bees in the garden = 9
Number of bees flew away = 8
9 – 8 = 1
so, 1 bee is still in the garden.

Count by 1s, 5s, or 10 s. Write the missing numbers.

Question 23.
2 3 4 _______ _______ _______ _______ _______ _______
2 3 4 5 6
Explanation:
The given series is skip by ones
so, we have to add one number to it.

Question 24.
45 50 _______ _______ _______ _______ _______ _______
45 50 55 60 65 70 75 80
Explanation:
The given series is skip by fives
so, we have to add 5 numbers to it.
50 + 5 = 55
55 + 5 = 60
60 +5 = 65

Question 25.
0 10 20 _______ _______ _______ _______ _______
0 10 20 30 40 50 60 70
Explanation:
The given series is skip by tens
so, we have to add 10 numbers to it.
20 + 10 = 30
30 + 10 = 40
40 + 10 = 50

Look at the chart. Write an addition sentence. Then write a subtraction sentence.

Question 26. ________ + ________ = ________
________ – ________ = ________
7 + 3 = 10
10 – 3 = 7
Explanation:
From the given 3 numbers we have written a addition sentence and a subtraction sentence.

Question 27. ________ + ________ = ________
________ – ________ = ________
9 + 4 = 13
13 – 4 = 9
Explanation:
From the given 3 numbers we have written a addition sentence and a subtraction sentence.

Read the number sentences. Write the missing number.

Question 28.
3 + = 14
14 – 3 = _________
3 + __________ = 14
14 – 3 = 11
3 + 11 = 14
Explanation:
Found the missing number in addition sentence and subtraction sentence.

Question 29.
6 + = 19
19 – 6 = ___________
6 + ___________ = 19
19 – 6 = 13
6 + 13 = 19
Explanation:
Found the missing number in addition sentence and subtraction sentence.

Question 30. ___________ tens = ___________ ones
8 tens = 80 ones.
Explanation:
There are 8 cube sticks,
In each cube stick there are 10 cubes

Question 31. ___________ tens = ___________ ones
5 tens = 50 ones.
Explanation:
There are 5 cube sticks,
In each cube stick there are 10 cubes

Use objects to help compare. Write greater than, less than, or equal to. Then write >, <, or =

Question 32.
38 and 38
38 is ___________ 38.
38 ___________ 38
38 is equal to 38
38 = 38
Explanation:
When the given numbers are same then we say they are equal.
equal is represented with the symbol ‘=’

Question 33.
12 and 21
12 is ___________ 21.
12 ___________ 21
12 is lesser than 21
12 < 21
Explanation:
When the given number is less then the other number
lesser than ‘< ‘symbol is used to represent

Add or subtract. Write the sum or difference.

Question 34.  Explanation:
The sum of 73 and 4 is 77
73 + 4 = 77

Question 35.  Explanation:
The sum of 80 and 11 is 91
80 + 11 = 91

Question 36.  Explanation:
The difference of 50 and 30 is 20
50 – 30 = 20

Question 37.
76
10 more than 76 is ____________.
10 less than 76 is ____________.
10 more than 76 is 86.
10 less than 76 is 66.
Explanation:
76 + 10 = 86
76 – 10 = 66

Question 38.
59
10 more than 59 is ____________.
10 less than 59 is ____________.
10 more than 59 is ____________.
10 less than 59 is ____________.
Explanation:
59 + 10 = 69
59 – 10 = 49

Add. Write the sum. Regroup if you need to.

Question 39. 22 + 31 = ____________
22 + 31 = 53
Explanation:
22 is regrouped as 2 tens and 2 ones
31 is regrouped as 3 tens and 1 ones
2 + 3 = 5tens
2 + 1 = 3 ones = 5 tens 3 ones = 53

Question 40. 43 + 17 = ____________
Explanation:
43 is regrouped as 4 tens and 3 ones
17 is regrouped as 1 tens and 7 ones
4 + 1 = 5 tens
1 + 7 = 8 ones = 5 tens and 8 ones = 58.

Question 41.
Circle the object that is heavier.  Explanation:
Monkey is heavier than the bee.
so, circled the monkey.

Question 42.
Name the coin. What is the value of this coin? Name ____________
Value ____________
Name Nickel
Value 5 cents.
Explanation:
The given coin is a Nickel.
the value of Nickel is 5

Look at each clock. Write the time.

Question 43. 11 : 00
Explanation:
The short hand represents the hours and the long hand represent the minutes
So, the analog clock is showing the time 11’o clock

Question 44. 3 : 30
Explanation:
The short hand represents the hours and the long hand represent the minutes
The short hand represents the hours and the long hand represent the minutes
So, the analog clock is showing the time 3:30

Question 45.
Write the time ¡n digital clock,
seven-thirty  Explanation:
The digital clock is displaying the time 7:30

Question 46.
Complete this pattern: 2, 4, 6, 8, 10, _______, 14, 16
2, 4, 6, 8, 10, 12, 14, 16
Explanation:
The given sequence is skip by two’s
10 + 2 = 12
The missing number is 12.

Question 47.
Write T on the triangles. Write S on the squares. Write R on the rectangle.  Explanation:
A triangle has 3 sides and 3 corners,
a square has 4 sides and 4 corners,
and a rectangle has 4 sides and 4 corners but opposite sides are equal.

Question 48.
Color 3 of 4 equal parts.  Explanation:
A rectangle has divided into 4 equal parts
3 parts of 4 are colored. Question 49.
How many children like dogs the best?
4 children
Explanation:
4 children like dogs the best.

Question 50.
How many more children liked fish than cats?