Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
818 + 154 =
2
972
3
4
|
2.
902 + 47 =
3
949
2
4
|
3.
405 – 127 =
2
4
278
3
|
4.
64 – 9 =
4
2
55
3
|
|
5.
302 + 270 =
3
4
2
572
|
6.
244 – 42 =
202
4
3
2
|
7.
3 + 522 =
4
525
3
2
|
8.
124 – 106 =
3
2
4
18
|
|
9.
524 – 56 =
2
468
3
4
|
10.
712 – 675 =
3
2
37
4
|
11.
692 – 468 =
3
4
224
2
|
12.
231 + 135 =
2
3
366
4
|
|
13.
414 + 340 =
4
2
754
3
|
14.
865 + 123 =
4
988
2
3
|
15.
166 + 82 =
3
4
248
2
|
16.
514 + 183 =
4
2
3
697
|
|
17.
604 – 463 =
3
4
2
141
|
18.
237 + 545 =
782
2
3
4
|
19.
712 – 389 =
2
3
4
323
|
20.
281 + 139 =
420
4
2
3
|