Sommen oplossen tot 20
Erbijsommen
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1.
8 + 8 =
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2.
18 + 1 =
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3.
3 + 7 =
|
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4.
20 + 0 =
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5.
13 + 2 =
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6.
4 + 10 =
|
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7.
15 + 3 =
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8.
18 + 2 =
|
9.
5 + 15 =
|
|
10.
10 + 8 =
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11.
2 + 12 =
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12.
16 + 0 =
|
|
13.
19 + 1 =
|
14.
9 + 7 =
|
15.
2 + 3 =
|
|
16.
1 + 18 =
|
17.
6 + 14 =
|
18.
9 + 4 =
|
|
19.
20 + 0 =
|
20.
5 + 15 =
|
21.
16 + 4 =
|
|
22.
18 + 0 =
|
23.
13 + 7 =
|
24.
16 + 0 =
|
|
25.
2 + 6 =
|
26.
12 + 1 =
|
27.
18 + 2 =
|
|
28.
13 + 3 =
|
29.
8 + 0 =
|
30.
17 + 1 =
|
|
31.
17 + 1 =
|
32.
19 + 0 =
|
33.
2 + 0 =
|