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Mathematic excerise 4

Mathematic excerise 4

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. Calculate:

13 + 4 =

18 + 5 =

3 + 18 =

13 + 3 =

8 + 0 =

2 + 13 =

3 + 3 =

16 + 1 =

5 + 7 =

18 + 4 =

17 - 2 =

12 - 4 =

18 - 6 =

21 - 7 =

15 - 9 =

13 - 5 =

8 - 6 =

14 - 3 =

19 - 6 =

22 - 7 =



2. Fill in the missing numbers:

+ 3 = 8

7 + = 11

5 + = 7

+ 4 = 5

8 + 6 =

5 + = 5

+ 3 = 6



3. Calculate:

6 + 6 + 2 =

2 + 4 + 5 =

13 - 5 - 3 =

17 - 8 - 2 =

12 + 4 - 6 =

14 - 5 + 7 =

11 - 5 + 1 =