Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
429 – 78 =
4
2
351
3
|
2.
784 + 76 =
3
2
860
4
|
3.
991 + 9 =
2
3
4
1000
|
4.
464 + 494 =
958
3
2
4
|
|
5.
936 + 61 =
3
997
4
2
|
6.
803 + 5 =
808
3
2
4
|
7.
48 + 29 =
77
3
2
4
|
8.
311 – 208 =
3
103
2
4
|
|
9.
695 + 33 =
728
4
2
3
|
10.
778 – 469 =
2
309
3
4
|
11.
271 – 119 =
3
2
152
4
|
12.
496 – 81 =
3
2
4
415
|
|
13.
15 + 1 =
3
16
2
4
|
14.
13 – 9 =
3
4
1
2
|
15.
631 + 211 =
842
2
3
4
|
16.
489 – 19 =
2
470
3
4
|
|
17.
101 – 47 =
4
3
2
54
|
18.
349 + 162 =
511
3
2
4
|
19.
681 – 451 =
3
2
230
4
|
20.
692 – 588 =
2
4
104
3
|