Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
663 + 200 =
863
2
|
2.
969 + 3 =
972
2
|
3.
740 + 6 =
2
746
|
4.
607 – 432 =
175
2
|
|
5.
247 – 48 =
2
199
|
6.
168 – 35 =
133
2
|
7.
450 – 101 =
349
2
|
8.
982 – 504 =
478
2
|
|
9.
909 + 80 =
2
989
|
10.
534 – 255 =
279
2
|
11.
204 + 382 =
586
2
|
12.
101 + 101 =
2
202
|
|
13.
149 + 528 =
2
677
|
14.
141 – 3 =
138
2
|
15.
731 – 599 =
132
2
|
16.
200 – 30 =
170
2
|
|
17.
730 – 706 =
2
24
|
18.
210 + 410 =
2
620
|
19.
732 – 437 =
2
295
|
20.
538 + 260 =
798
2
|