Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
890 + 32 =
3
922
2
4
|
2.
596 + 101 =
4
3
697
2
|
3.
94 – 89 =
5
3
2
1
|
4.
24 + 459 =
4
483
3
2
|
|
5.
492 – 87 =
3
2
405
4
|
6.
422 + 36 =
458
4
3
2
|
7.
473 – 7 =
3
2
4
466
|
8.
34 – 31 =
4
1
2
3
|
|
9.
289 – 245 =
4
3
2
44
|
10.
421 + 230 =
2
4
3
651
|
11.
503 + 486 =
2
3
4
989
|
12.
136 – 91 =
4
3
45
2
|
|
13.
104 – 103 =
4
2
3
1
|
14.
637 – 218 =
4
419
3
2
|
15.
383 – 309 =
2
74
3
4
|
16.
499 + 439 =
4
2
3
938
|
|
17.
589 – 454 =
2
135
4
3
|
18.
586 – 354 =
3
4
2
232
|
19.
298 – 194 =
104
2
4
3
|
20.
155 + 649 =
4
3
2
804
|