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Decade Addition
Decade Subtraction
2-digit addition
2-digit subtraction
100

10+30=

40

100

20-10=

10
100

What is the sum of 23 + 42?

65

100

What is the difference between 54 and 32?

22

200

30+20=

50

200

50-20=

30

200

Calculate the total of 56 + 34.

90
200

Subtract 47 from 88.

41

300

70+20=

90

300

70-50=

20

300

Find the result of 45 + 29.

74

300

Calculate 65 - 29

36

400

60+40=

100

400

90-50=

40

400

Add 38 + 47.

85

400

Find the result of 81 - 32.

49

500

50+70=

120

500

120-60=

60

500

If you add 25 + 48, what is the total?

73

500

If you subtract 56 from 93, what is the answer?

37