Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
342 – 307 =
35
2
|
2.
239 – 228 =
1
11
|
3.
814 + 30 =
844
2
|
4.
452 + 67 =
2
519
|
|
5.
151 + 274 =
2
425
|
6.
523 + 175 =
2
698
|
7.
301 – 18 =
283
2
|
8.
294 + 119 =
413
2
|
|
9.
511 + 75 =
2
586
|
10.
402 + 140 =
2
542
|
11.
231 + 402 =
633
2
|
12.
687 – 334 =
2
353
|
|
13.
117 – 116 =
2
1
|
14.
245 + 384 =
2
629
|
15.
875 – 105 =
2
770
|
16.
421 + 363 =
2
784
|
|
17.
804 – 735 =
69
2
|
18.
63 – 36 =
2
27
|
19.
159 – 124 =
2
35
|
20.
614 – 520 =
2
94
|