Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
520 + 476 =
996
2
|
2.
492 – 6 =
486
2
|
3.
90 – 84 =
6
1
|
4.
59 + 38 =
2
97
|
|
5.
958 + 22 =
980
2
|
6.
932 + 59 =
2
991
|
7.
38 – 6 =
2
32
|
8.
816 – 515 =
2
301
|
|
9.
773 – 211 =
562
2
|
10.
661 – 137 =
2
524
|
11.
900 + 66 =
966
2
|
12.
88 + 66 =
2
154
|
|
13.
651 + 228 =
2
879
|
14.
163 + 637 =
800
2
|
15.
194 – 26 =
2
168
|
16.
257 – 255 =
2
1
|
|
17.
367 + 326 =
2
693
|
18.
163 – 40 =
123
2
|
19.
285 – 106 =
179
2
|
20.
16 – 13 =
1
3
|