Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
499 + 168 =
667
2
|
2.
489 – 476 =
13
1
|
3.
169 + 323 =
492
2
|
4.
649 + 119 =
2
768
|
|
5.
887 – 55 =
832
2
|
6.
580 + 385 =
965
2
|
7.
143 – 65 =
2
78
|
8.
416 + 35 =
451
2
|
|
9.
540 + 440 =
2
980
|
10.
251 – 163 =
2
88
|
11.
515 – 473 =
2
42
|
12.
937 + 26 =
963
2
|
|
13.
689 + 119 =
808
2
|
14.
736 + 32 =
2
768
|
15.
685 + 300 =
985
2
|
16.
546 + 214 =
760
2
|
|
17.
387 – 182 =
2
205
|
18.
830 + 152 =
982
2
|
19.
415 + 43 =
2
458
|
20.
454 + 532 =
2
986
|