Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
895 + 65 =
2
960
|
2.
901 + 64 =
2
965
|
3.
957 + 7 =
2
964
|
4.
264 + 121 =
385
2
|
|
5.
666 + 2 =
668
2
|
6.
701 + 284 =
985
2
|
7.
688 + 252 =
2
940
|
8.
611 + 276 =
887
2
|
|
9.
240 – 82 =
158
2
|
10.
610 + 243 =
853
2
|
11.
718 + 78 =
796
2
|
12.
270 + 453 =
723
2
|
|
13.
117 – 111 =
6
1
|
14.
178 + 208 =
2
386
|
15.
464 – 314 =
150
2
|
16.
999 – 213 =
2
786
|
|
17.
468 – 441 =
2
27
|
18.
166 – 119 =
47
2
|
19.
553 + 277 =
2
830
|
20.
166 – 82 =
84
2
|