Show:
Addition within 20
Subtraction within 20
Place Value
Counting Objects
Addition and Subtraction within 100
100
7 + 5 =

12

100

9 - 5 =

4

100

Which number is in the ONES place?

542

2
100

How many dots?

0   0   0   0   0


5

100

45 + 32 =

77

200

12 + 3 =

15

200

10 - 7 =

3

200

Which number is in the TENS place?

953

5

200

How many dots?

0   0   0   0   0   

0   0   0   0   0

10

200

12 + 25 =

37

300

6 + 4 =

10

300

12 - 5 =

7

300

Which number is in the ONES place?

764

4

300

How many lines?

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18

300

30 + 40 =

70

400

8 + 7 =

15

400

15 - 9 =

6

400

Which number is in the TENS place?

836

3

400

How many lines?

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/  /  /  /  /  /  

16

400

68 - 45 =

23

500

9 + 8 =

17

500

18 - 12 =

6

500

Which number is in the HUNDREDS place?

861

8

500

How many dots?

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0

0 0 0 

23

500

99 - 64 =

35