Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
608 – 237 =
3
2
4
371
|
2.
77 – 20 =
57
4
3
2
|
3.
422 + 139 =
2
561
4
3
|
4.
902 + 58 =
960
4
2
3
|
|
5.
529 + 185 =
2
714
3
4
|
6.
853 + 113 =
2
3
966
4
|
7.
732 – 103 =
2
4
3
629
|
8.
929 + 27 =
4
3
956
2
|
|
9.
943 – 253 =
4
3
2
690
|
10.
272 + 87 =
2
3
359
4
|
11.
793 + 62 =
3
4
2
855
|
12.
707 + 264 =
2
3
4
971
|
|
13.
782 – 419 =
4
2
3
363
|
14.
533 – 314 =
219
4
3
2
|
15.
685 – 265 =
3
2
420
4
|
16.
773 – 172 =
4
601
3
2
|
|
17.
218 + 314 =
2
532
4
3
|
18.
279 – 181 =
98
4
3
2
|
19.
315 – 144 =
3
4
2
171
|
20.
231 – 76 =
155
4
2
3
|