Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
624 – 10 =
2
614
3
4
|
2.
509 – 211 =
2
4
3
298
|
3.
439 + 53 =
2
4
3
492
|
4.
386 – 329 =
2
3
57
4
|
|
5.
761 – 81 =
2
3
4
680
|
6.
761 + 189 =
4
2
3
950
|
7.
390 + 271 =
2
3
661
4
|
8.
590 – 343 =
2
4
247
3
|
|
9.
956 + 41 =
4
3
997
2
|
10.
228 – 166 =
2
4
62
3
|
11.
446 – 205 =
3
241
4
2
|
12.
967 – 548 =
419
2
4
3
|
|
13.
147 – 147 =
2
3
4
0
|
14.
2 + 486 =
2
3
4
488
|
15.
420 – 381 =
3
4
2
39
|
16.
772 + 48 =
820
3
2
4
|
|
17.
977 + 12 =
989
3
4
2
|
18.
832 – 360 =
472
3
4
2
|
19.
368 + 459 =
827
4
3
2
|
20.
500 + 237 =
4
737
2
3
|