Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
775 + 89 =
2
864
|
2.
638 – 159 =
479
2
|
3.
915 – 543 =
2
372
|
4.
856 + 62 =
918
2
|
|
5.
283 – 195 =
2
88
|
6.
832 + 37 =
2
869
|
7.
946 – 395 =
551
2
|
8.
932 – 727 =
2
205
|
|
9.
751 – 165 =
586
2
|
10.
49 + 858 =
2
907
|
11.
375 – 98 =
2
277
|
12.
325 + 8 =
333
2
|
|
13.
449 – 191 =
2
258
|
14.
103 – 6 =
2
97
|
15.
926 + 74 =
2
1000
|
16.
970 + 27 =
997
2
|
|
17.
185 + 426 =
2
611
|
18.
42 + 69 =
2
111
|
19.
169 – 83 =
86
2
|
20.
593 – 588 =
1
5
|