Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
212 + 98 =
310
2
|
2.
451 – 73 =
2
378
|
3.
471 + 470 =
941
2
|
4.
73 + 616 =
689
2
|
|
5.
630 + 23 =
2
653
|
6.
739 + 7 =
2
746
|
7.
297 – 262 =
2
35
|
8.
42 – 24 =
18
2
|
|
9.
139 + 246 =
385
2
|
10.
268 + 10 =
278
2
|
11.
730 – 51 =
2
679
|
12.
417 + 455 =
872
2
|
|
13.
957 + 30 =
2
987
|
14.
589 – 463 =
2
126
|
15.
957 + 27 =
2
984
|
16.
162 + 187 =
349
2
|
|
17.
114 – 38 =
76
2
|
18.
29 – 1 =
2
28
|
19.
575 – 200 =
375
2
|
20.
593 – 364 =
229
2
|