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Introduction

Maak de sommen.


Question

1
14 - 7 =

Question

2
15 - 7 =

Question

3
90 - 20 =

Question

4
70 - 40 =

Question

5
70 + 20 =

Question

6
50 + 30 =

Question

7
30 + 8 =

Question

8
8 + 1 =
18 + 1 =

Question

9
18 - 14 =

Question

10
6 + 3 =
16 + 3 =