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Add an Subtract 10s

Last updated over 3 years ago

10 questions

1 point

1

Question 1

1.

30 + 20 =

1 point

1

Question 2

2.

60 - 20 =

1 point

1

Question 3

3.

40 + 30 =

1 point

1

Question 4

4.

60 - 30 =

1 point

1

Question 5

5.

100 - 20 =

1 point

1

Question 6

6.

10 + 80 =

1 point

1

Question 7

7.

80 - 30 =

1 point

1

Question 8

8.

35 + 20 =

1 point

1

Question 9

9.

65 - 30 =

1 point

1

Question 10

10.

27 + 20 =