Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
658 + 24 =
2
682
|
2.
438 – 25 =
2
413
|
3.
162 – 48 =
114
2
|
4.
418 + 56 =
474
2
|
|
5.
899 + 75 =
974
2
|
6.
490 – 308 =
2
182
|
7.
323 – 112 =
2
211
|
8.
215 – 112 =
103
2
|
|
9.
833 + 133 =
2
966
|
10.
452 + 476 =
2
928
|
11.
976 – 551 =
425
2
|
12.
915 + 47 =
2
962
|
|
13.
872 + 31 =
2
903
|
14.
144 – 43 =
2
101
|
15.
8 – 1 =
1
7
|
16.
650 + 321 =
2
971
|
|
17.
783 – 493 =
290
2
|
18.
714 + 143 =
857
2
|
19.
514 – 345 =
169
2
|
20.
178 + 373 =
2
551
|