Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
301 + 283 =
584
2
|
2.
699 – 98 =
601
2
|
3.
945 – 442 =
503
2
|
4.
630 – 302 =
2
328
|
|
5.
430 + 133 =
563
2
|
6.
358 + 37 =
395
2
|
7.
521 + 324 =
2
845
|
8.
624 + 82 =
706
2
|
|
9.
399 + 231 =
630
2
|
10.
54 – 7 =
47
2
|
11.
339 – 187 =
2
152
|
12.
564 + 419 =
2
983
|
|
13.
748 + 209 =
2
957
|
14.
231 – 194 =
2
37
|
15.
298 – 237 =
61
2
|
16.
480 + 253 =
733
2
|
|
17.
655 + 112 =
2
767
|
18.
66 + 926 =
2
992
|
19.
141 – 9 =
132
2
|
20.
444 – 293 =
2
151
|