Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
480 + 325 =
2
805
|
2.
548 + 100 =
2
648
|
3.
555 + 371 =
2
926
|
4.
955 – 725 =
2
230
|
|
5.
506 – 111 =
395
2
|
6.
376 – 332 =
2
44
|
7.
575 – 400 =
175
2
|
8.
133 – 62 =
71
2
|
|
9.
404 + 74 =
2
478
|
10.
910 – 7 =
2
903
|
11.
901 + 65 =
2
966
|
12.
819 – 661 =
2
158
|
|
13.
278 – 251 =
2
27
|
14.
776 + 67 =
843
2
|
15.
832 + 120 =
952
2
|
16.
247 – 109 =
138
2
|
|
17.
419 – 389 =
2
30
|
18.
610 + 132 =
2
742
|
19.
957 + 19 =
2
976
|
20.
390 – 102 =
288
2
|