A
Which can be used to find the sum of 46 and 39?
A. 4 tens + 3 tens + 6 ones + 9 ones
B. 4 tens + 3 tens + 16 ones + 19 ones
C. 4 tens + 9 tens + 6 ones + 3 ones
D. 3 tens + 4 tens + 9 ones + 9 ones
A. 4 tens + 3 tens + 6 ones + 9 ones
Which can be used to find the sum of 35 and 58?
A. 3 tens + 5 tens + 9 ones + 5 ones
B. 5 tens + 3 tens + 8 ones + 5 ones
C. 3 tens + 4 tens + 5 ones + 8 ones
D. 5 tens + 3 tens + 8 ones + 4 ones
B. 5 tens + 3 tens + 8 ones + 5 ones
Which number sentence can be used to find the sum of 35 and 24?
A. 3 + 2 + 5 + 4 = 14
B. 30 + 20 + 5 + 4 = 59
C. 30 + 20 + 14 + 15 = 79
D. 3 + 2 + 14 + 15 = 34
B. 30 + 20 + 5 + 4 = 59
Which number sentence can be used to find the sum of 64 and 17?
A. 6 + 4 + 1+ 7 = 18
B. 60 + 20 + 4 + 7 = 91
C. 60 + 10 + 4 + 7 = 79
D. 60 + 10 + 14 + 17 = 101
C. 60 + 10 + 4 + 7 = 79
Dante gave 29 invitations to friends and 15 to family. How many total invitations did he give out?
A. 44 invitations
B. 42 invitations
C. 14 invitations
D. 13 invitations
A. 44 invitations
On Monday, 32 third graders wore hats. On Tuesday, 28 third graders wore hats. How many total students wore hats on both days?
A. 60 third graders
B. 58 third graders
C. 50 third graders
D. 62 third graders
A. 60 third graders
There are 25 boys and 19 girls in the chorus. Which expression can be used to find the total?
A. 20 + 10 + 5 + 9
B. 20 + 10 + 10 + 5
C. 20 + 10 + 5 + 19
D. 20 + 10 + 19 + 5
A. 20 + 10 + 5 + 9
Jan wants to add 45 + 34. She breaks the numbers down and adds them correctly. Which strategy could Jan use?
A. 40 + 30 + 2 + 4
B. 40 – 30 + 5 – 4
C. 40 + 5 + 30 + 4
D. 40 – 5 + 30 – 4
40 + 5 + 30 + 4
The movie theater sold tickets on Friday and 38 on Saturday. Altogether they sold 85 tickets. Which equation shows how many were sold on Friday?
A. ____ + 38 = 85
B. 38 + 85 = ____
C. ____ = 85 + 38
D. ____ – 85 = 38
A. ____ + 38 = 85
The movie theater sold tickets on Friday and 47 on Saturday. Altogether they sold 89 tickets. Which equation shows how many were sold on Friday?
A. ____ + 47 = 89
B. 47 + 89 = ____
C. ____ = 89 + 47
D. ____ – 89 = 47
A. ____ + 47 = 89
Jada wants to check 74 − 19 = 55. Which problem could she use?
A. 55 + 74 = 129
B. 74 + 19 = 93
C. 55 – 19 = 36
D. 55 + 19 = 74
D. 55 + 19 = 74
Kathy wants to check 61 + 28 = 89. Which problem could she use?
A. 61 + 89 = 150
B. 89 + 28 = 117
C. 89 − 28 = 61
D. 61 − 28 = 33
C. 89 − 28 = 61
Kate was given this subtraction problem to check by her teacher. Kate said she could use an inverse or opposite problem to check the answer.
79 - 25 = 54
Which problem could Kate use to check the answer?
A. 25 + 79 = 104
B. 79 + 54 = 133
C. 54 − 79 = 79
D. 54 + 25 = 79
D. 54 + 25 = 79
George was asked to solve 23 + 56 by breaking numbers into tens and ones. Which number sentence gives the correct answer?
A. 20 + 50 + 3 + 6 = 79
B. 20 + 50 = 70
C. 23 + 57 = 80
D. 20 + 56 = 76
A. 20 + 50 + 3 + 6 = 79
George was asked to solve 32 + 57 by breaking numbers into tens and ones. Which number sentence gives the correct answer?
A. 30 + 50 + 2 + 6 = 88
B. 30 + 50 = 80
C. 32 + 57 = 89
D. 30 + 57 = 87
C. 32 + 57 = 89
Jan wants to add 36 + 45. She breaks the numbers down and adds them correctly. Which strategy could Jan use?
A. 30 + 40 + 6 + 5
B. 30 – 40 + 6 – 5
C. 30 + 4 + 60 + 5
D. 30 – 6 + 40 – 5
A. 30 + 40 + 6 + 5
Kelly is subtracting 44 from 78. She breaks apart the numbers:
Step 1: 78 = 70 + 8 and 44 = 40 + 4
Step 2: 8 − 4 = 4
Step 3: 70 − 40 = 30
Which number sentence can be used to find Kelly’s answer?
A. 30 + 4 = 34
B. 40 + 4 = 44
C. 30 − 4 = 26
D. 40 − 4 = 36
A. 30 + 4 = 34
Kelly is subtracting 32 from 89. She breaks apart the numbers:
Step 1: 32 = 30 + 2 and 89 = 80 + 9
Step 2: 9 − 2 = 7
Step 3: 80 − 30 = 50
Which number sentence can be used to find Kelly’s answer?
A. 50 + 30 = 80
B. 50 + 7 = 57
C. 50 − 7 = 43
D. 50 − 30 =20
B. 50 + 7 = 57
At the park, Lisa saw 21 black birds. Mike saw 36 blue birds. Which number sentence can be used to find how many more blue birds than black birds they saw?
A. 35 − ___ = 21
B. 36 + ___ = 21
C. 36 + 21 = ___
D. 36 − 22 = ___
A. 35 − ___ = 21
What equation can you use to check the answer to 74 − 28 = 46?
A. 28 + 46 = 74
B. 46 + 74 = 120
C. 46 − 28 = 18
D. 74 + 28 = 102
A. 28 + 46 = 74