Single digit Addition/Subtraction
Challenge!
Subtract 10
Mental Math
Word Problems
100

7 - 6 =

1

100

16 + 14 = 

30

100

20 - 10 = 

10

100

20 + 10 =

30

100

Kim found a spider with 8 legs. When she picked it up, it lost 4 legs. How many legs does it have left?

8 - 4 = 4 legs

200

9 - 7 =

2

200

8 tens - 4 tens =

4 tens or 40

200

50 - 10 =

40

200

50 + 10 =

60

200

A bee has 6 legs. How many legs do 2 bees have?

6 + 6 = 12 or 6 x 2 = 12

300

8 + 2 =

10

300

When counting by 5s, what comes after 130?

135

300

25 - 10 = 

15

300

65 + 10 =

75

300

You have 7 balloons and your friend has 5 balloons. How many more balloons do you have than your friend?

7 - 5 = 2 Balloons 

400

7 + 7 = 

14

400

Compare this! 10 + 10 + 10 + 20 ____ 3 tens + 2 tens 

50 is EQUAL to 50

400

82 - 10 =

72

400

80 + 15 = 

95

400

You have collected 7 crickets. How many more crickets do you need to collect to have 11 crickets?

11 - 7 = 4 crickets 

500

9 + 8 = 

17

500

5 hundreds + 4 hundreds =

900

500

110 - 10 =

100

500

100 + 40 =

140
500

Pat has 10 pieces of candy. His sister gives him 3 more, but his brother eats 2 of them. How many pieces of candy does he have left?

10 + 3 = 13, 13 - 2 = 11 pieces of candy