1st grade

addition

100

2+3

5

200

5+6

11

300

3+9

12

400

7+9

16

500

10+6

16

subtraction

100

5-2

3

200

7-3

4

300

10-6

4

400

19-4

15

500

21-7

14

addition

100

7+2

9

200

16+8

24

300

5+27

32

400

13+17

30

500

23+13

36

subtraction

100

8-2

6

200

10-7

3

300

13-6

7

400

27-9

18

500

30-15

15

addition

100

2+4

6

200

7+4

11

300

9+15

24

400

16+27

43

500

14+17

31