ADD IT UP ➕
Which is the sum of 31 + 27?
A. 48
B. 58
C. 59
D. 68
B. 58
Break apart 47 into tens and ones.
40 + 7
When using partial sums to solve 32 + 45, what do you add first?
A. 30 + 40
B. 2 + 40
C. 32 + 5
A. 30 + 40
Round 36 to the nearest ten.
40
Mia has 42 stickers. Her brother gives her 16 more stickers. How many stickers does Mia have now?
58 stickers
Which is the sum of 42 + 28?
A. 71
B. 70
C. 68
D. 60
B. 70
Which are equal to 43 + 29? Choose all that apply.
A. 40 + 20 + 3 + 9
B. 60 + 12
C. 62
D. 72
A, B, and D
Find 24 + 35 using partial sums.
Which equation shows using partial sums to solve?
A. 20 + 30 + 4 + 5 = 59
B. 24 + 30 + 5 = 69
C. 20 + 30 + 4 + 5 = 49
A. 20 + 30 + 4 + 5 = 59
Round 72 to the nearest ten.
70
Jill has 58 stickers. Her brother gives her 27 more stickers. How many stickers does Jill have now?
A. 31
B. 63
C. 75
D. 85
D. 85
Find the sum of 52 + 9.
A. 43
B. 59
C. 61
D. 62
C. 61
Which are equal to 54 + 38? Choose all that apply.
A. 50 + 30 + 4 + 8
B. 80 + 12
C. 82
D. 92
A, B, and D
Find 35 + 14 using partial sums.
Which equation shows using partial sums to solve?
A. 30 + 10 + 5 + 4 = 59
B. 35 + 10 + 4 = 59
C. 30 + 10 + 5 + 4 = 49
C. 30 + 10 + 5 + 4 = 49
Which is the best estimate of 43 + 26?
A. 50
B. 60
C. 70
D. 80
C. 70
Tia has 16 more dimes than Sam. Sam has 27 dimes. How many dimes does Tia have?
43 dimes
Which is the sum of 38 + 27?
A. 53
B. 55
C. 63
D. 65
D. 65
Which shows breaking apart the second addend to find 38 + 27?
A. 38 + 2 + 20 + 5
B. 30 + 20 + 8 + 7
C. 38 + 27
A. 38 + 2 + 20 + 5
Complete the equation to show how to find 56 + 27 using partial sums.
___ tens + ___ ones = ___
7 tens + 13 ones = 83
Which is the best estimate of 35 + 14?
A. 30
B. 40
C. 50
D. 60
C. 50
Lisa has 13 more dimes than Doug. Doug has 39 dimes. How many dimes does Lisa have?
52 dimes
Solve:
57 + 36 = ?
93
Which shows breaking apart the second addend to find 46 + 28?
A. 40 + 20 + 6 + 8
B. 46 + 4 + 20 + 4
C. 46 + 28
B. 46 + 4 + 20 + 4
Complete the equation to show how to find 67 + 26 using partial sums.
___ tens + ___ ones = ___
8 tens + 13 ones = 93
Estimate the sum of 58 + 27.
A. 70
B. 75
C. 80
D. 90
D. 90
Marcus has 16 pencils. Then he gets 9 more pencils. He has 13 friends. He gives each friend one pencil.
How many pencils does Marcus have left?
12 pencils