MATH

double digit addition

100

19+20

39

200

74+21

85

300

36+33

69

400

41+23

54

500

67+12

79

single digit addition

100

3+3

6

200

7+2

9

300

1+3

4

400

5+4

9

500

2+6

8

double digit subtraction

100

56-42

14

200

67-41

26

300

93-41

52

400

88-44

44

500

33-22

11

single digit subtraction

100

9-7

2

200

8-2

6

300

3-1

2

400

7-4

3

500

6-1

5