Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
130 + 31 =
2
161
|
2.
569 – 404 =
165
2
|
3.
727 – 227 =
500
2
|
4.
43 + 65 =
108
2
|
|
5.
123 + 588 =
711
2
|
6.
888 – 46 =
2
842
|
7.
986 + 1 =
2
987
|
8.
819 + 101 =
2
920
|
|
9.
163 + 259 =
422
2
|
10.
706 + 55 =
2
761
|
11.
285 – 24 =
261
2
|
12.
665 + 163 =
2
828
|
|
13.
493 – 56 =
437
2
|
14.
917 + 82 =
999
2
|
15.
653 + 205 =
2
858
|
16.
580 – 61 =
519
2
|
|
17.
474 – 36 =
438
2
|
18.
100 + 324 =
424
2
|
19.
165 + 131 =
296
2
|
20.
322 + 511 =
2
833
|