Subtract 2- digit Numbers
rename to subtract
decompose to subtract
Check Subtraction with Addition
Problem Solving: Estimation
100

58-6 =?

52

100

53 - 7 = ?

46

100

16-8 =?

16 - ___= 10

10- ____ = ______

16- 8 = 8 

6. 2. 

16- 6 = 10

10 - 2 = 8

100

52 -15 =?

52 - 15 = 37 

37 + 15 + 52

100

Randy has 25 marbles. He gave 18 to his sister. About how many marbles does Randy have left? 

30-20 = 10

200

32 - 11 =?

21

200

67 - 9= ?

58

200

22-7 =?

22 - ___= 20

20- ____ = ______

22-7 = 15

2  5 

22 - 2 = 20

20- _5___ = ___15___

200

33 - 25 = ?

33- 25 = 8 

8 + 25 = 33

200

Sophie collected 52 insects for her project. She put 14 insects on the poster board. About how many insects does she still need to put on the board?

50-10 = 40

300

53 - 29 =?

24

300

85-19= ?

66

300

48-9 = _____

48 - ___= 40

40- ____ = ______

48-9 = ___39__

8 1

48 - _8__= 40

40- __1__ = ___39___

300

86 -28 = 

86- 28 = 58 

58 +28 = 86

300

Pawprint animal rescue had 53 cats to be adopted. It had 17 cats that were adopted in January. How many cats still need to be adopted?

36

400

63 -47 = ?

16

400

46c - 17c = ?

29 cents

400

36 - 8=  _____

36 - ___= 30

30- ____ = ______

36 - 8=  ___28__

6 2

36 - _6__= 30

30- __2__ = ___28___

400

51 -14=

51-14 = 37 

37 + 14 = 51

400

Faith Bible church has 29 adults helping with Vacation Bible School this year. On the first night 53 children came. How many more children are there than adults?

24

500

81-42=?

39

500

43- 38 = ?

5

500

67-9 = _____

67 - ___= 60

60- ____ = ______

67-9 = ___58__

7  2

67 - _7__= 60

60- _2___ = __58____

500

91 - 27 = 

91- 27 = 64

64 + 27  = 91

500

Matt made 56 clay pots to sell at the festival. He sold 19 pots on the first day. How many more pots does he need to sell? 

37

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