Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
107 + 349 =
456
2
|
2.
81 + 26 =
2
107
|
3.
460 – 71 =
389
2
|
4.
395 – 152 =
2
243
|
|
5.
398 + 358 =
2
756
|
6.
561 + 202 =
2
763
|
7.
318 – 182 =
2
136
|
8.
916 + 26 =
2
942
|
|
9.
93 – 78 =
1
15
|
10.
400 – 239 =
2
161
|
11.
272 – 92 =
2
180
|
12.
627 – 146 =
481
2
|
|
13.
487 + 76 =
2
563
|
14.
798 + 116 =
2
914
|
15.
10 – 0 =
1
10
|
16.
538 + 344 =
2
882
|
|
17.
337 – 267 =
70
2
|
18.
90 + 739 =
2
829
|
19.
322 – 299 =
23
2
|
20.
356 + 494 =
850
2
|