Write an addition sentence.
17 - 12 = 5
___ + ___ = ___
5 + 12 =17
34 + 42 = ___ + ____
= ____
34 + 42 = 70 + 6
= 76
Sarah has 26 cookies. She has 15 chocolate cookies. How many vanilla cookies does she have?
Chocolate Cookies: ____
Vanilla Cookies: ____
Difference: ____
Total: ____
Chocolate Cookies: 15
Vanilla Cookies: 11
Difference: 4
Total: 26
Double the smaller number and then add 1.
15 + 14 = 14 + ___ + ___ = ___
15 + 14 = 14 + 14 + 1 = 29
Draw a picture.
3 white squares. 5 more black squares than white squares.
Difference: ____
Total: ____
Difference: 5
Total: 11
Write an addition sentence.
64 - 29 = 35
___ + ___ = ___
35 + 29 = 64
42 = ___ + ____
22 = ___ + ____
42 + 22 = ___ + ___
= ____
42 = 40 + 2
22 = 20 + 2
42 + 22 = 60 + 4
= 64
Subtract mentally by counting up. Fill in the blanks then add up the numbers for the answer.
SOLVE: 63 - 18
18 ___ 20 ___ 60 ___ 63
Answer: ___ + ___ + ___ = ____
63 - 18 = 45
2 + 40 + 3 = 45
Double the smaller number and then add 1.
12 + 13 = 12 + ___ + ___ = ___
12 + 13 = 12 + 12 + 1 = 25
Draw a picture.
2 red squares. 8 squares all together
Difference: ____
Total: ____
Difference: 4
Total: 8
Write an addition sentence.
72 - 37 = 35
___ + ___ = ___
35 + 37 = 72
20 + 6 = 20 + ___ + ___ =___
20 + 6 = 20 + 5 + 1 =26
Subtract mentally by counting up. Fill in the blanks then add up the numbers for the answer.
SOLVE: 23 - 6
6 ___ 10 ___ 20 ___ 23
Answer: ___ + ___ + ___ = ____
23 - 6 = 17
4 + 10 + 3 = 17
Double the bigger number and then minus 1.
30 + 29 = 30 + ___ - ___ = ___
30 + 29 = 30 + 30 - 1 = 59
Draw a picture.
6 purple squares. 9 squares altogether.
Difference: ____
Total: ____
Difference: 3
Total: 9
Write a subtraction sentence.
86 + 23 = 109
___ - ___ = ___
109 - 23 = 86
76 + 7 = 76 + ___ + ___= ____
76 + 7 = 76 + 4 + 3 = 83
30 - 8 = 30 - ___ - ____ = ____
30 - 8 = 30 - 4 - 4 = 22
Double the bigger number and then minus 1.
18 + 17 = ___ + ___ - ___ = ___
18 + 17 = 18 + 18 - 1 = 35
Draw a picture.
9 blue squares. 3 fewer red squares than blue squares.
Difference: ____
Total: ____
Difference: 3
Total: 15
Write a subtraction sentence.
502 + 403 = 905
___ - ___ = ___
905 - 403 = 502
86 + 6 = 86 + ___ + ____ = ____
86 + 6 = 86 + 4 + 2 = 92
40 - 6 = 40 - ___ - ____ = ____
40 - 6 = 40 - 3 - 3 = 34
Double the bigger number and then minus 1.
75 + 74 = ___ + ___ - ___ = ___
75 + 74 = 75 + 75 - 1 = 149
Draw a picture.
6 green squares. 4 fewer yellow squares than green squares.
Difference: ____
Total: ____
Difference: 4
Total: 8