Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
535 – 531 =
4
1
|
2.
421 – 237 =
2
184
|
3.
833 – 179 =
654
2
|
4.
978 – 494 =
484
2
|
|
5.
130 – 40 =
90
2
|
6.
227 + 30 =
257
2
|
7.
840 + 129 =
2
969
|
8.
573 + 329 =
2
902
|
|
9.
410 – 171 =
2
239
|
10.
168 – 9 =
159
2
|
11.
840 + 31 =
871
2
|
12.
213 + 11 =
224
2
|
|
13.
470 + 521 =
991
2
|
14.
223 – 100 =
2
123
|
15.
818 – 119 =
699
2
|
16.
361 + 5 =
2
366
|
|
17.
800 – 630 =
170
2
|
18.
760 + 90 =
2
850
|
19.
534 – 516 =
18
2
|
20.
47 + 291 =
2
338
|