Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
210 – 80 =
2
130
|
2.
11 + 137 =
148
2
|
3.
312 + 222 =
2
534
|
4.
278 + 119 =
2
397
|
|
5.
999 + 1 =
2
1000
|
6.
971 + 11 =
982
2
|
7.
876 – 695 =
2
181
|
8.
518 + 460 =
2
978
|
|
9.
224 – 170 =
54
2
|
10.
868 + 89 =
957
2
|
11.
579 + 57 =
2
636
|
12.
56 – 29 =
2
27
|
|
13.
683 – 243 =
440
2
|
14.
435 + 8 =
2
443
|
15.
889 + 110 =
2
999
|
16.
844 – 290 =
2
554
|
|
17.
24 – 20 =
1
4
|
18.
831 + 39 =
2
870
|
19.
817 – 687 =
130
2
|
20.
361 + 54 =
415
2
|