Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
658 + 108 =
2
766
|
2.
937 – 895 =
2
42
|
3.
764 + 111 =
875
2
|
4.
986 – 111 =
875
2
|
|
5.
665 – 463 =
2
202
|
6.
494 – 38 =
2
456
|
7.
553 – 462 =
2
91
|
8.
347 – 253 =
2
94
|
|
9.
667 – 217 =
450
2
|
10.
492 – 62 =
430
2
|
11.
433 – 205 =
228
2
|
12.
323 + 160 =
483
2
|
|
13.
238 + 94 =
332
2
|
14.
114 – 70 =
44
2
|
15.
386 – 37 =
2
349
|
16.
800 + 151 =
951
2
|
|
17.
442 + 462 =
2
904
|
18.
877 – 594 =
2
283
|
19.
38 + 409 =
2
447
|
20.
483 + 128 =
2
611
|