Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
787 + 95 =
882
2
|
2.
992 + 5 =
2
997
|
3.
219 + 52 =
2
271
|
4.
388 – 287 =
101
2
|
|
5.
261 + 56 =
2
317
|
6.
570 + 362 =
932
2
|
7.
718 + 185 =
2
903
|
8.
519 – 55 =
464
2
|
|
9.
297 – 248 =
2
49
|
10.
255 + 417 =
2
672
|
11.
393 – 299 =
94
2
|
12.
289 – 247 =
2
42
|
|
13.
451 + 36 =
2
487
|
14.
539 + 28 =
567
2
|
15.
866 + 43 =
2
909
|
16.
502 + 227 =
729
2
|
|
17.
323 + 80 =
403
2
|
18.
237 + 206 =
2
443
|
19.
613 – 155 =
458
2
|
20.
968 – 919 =
49
2
|