Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
37 + 80 =
117
2
|
2.
951 – 528 =
2
423
|
3.
361 – 17 =
344
2
|
4.
543 + 417 =
2
960
|
|
5.
163 – 136 =
2
27
|
6.
495 + 472 =
967
2
|
7.
837 – 776 =
2
61
|
8.
806 – 365 =
2
441
|
|
9.
282 – 197 =
2
85
|
10.
124 + 491 =
615
2
|
11.
28 + 939 =
2
967
|
12.
853 + 10 =
2
863
|
|
13.
918 + 39 =
2
957
|
14.
984 + 4 =
988
2
|
15.
994 + 2 =
2
996
|
16.
270 – 96 =
2
174
|
|
17.
630 – 352 =
2
278
|
18.
922 + 26 =
2
948
|
19.
731 + 120 =
2
851
|
20.
362 + 175 =
2
537
|