Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
646 – 481 =
3
165
4
2
|
2.
437 – 21 =
4
3
416
2
|
3.
332 – 151 =
2
4
3
181
|
4.
407 – 261 =
146
2
3
4
|
|
5.
389 + 368 =
2
757
3
4
|
6.
156 – 38 =
118
3
4
2
|
7.
850 + 142 =
992
2
3
4
|
8.
24 – 24 =
3
0
2
4
|
|
9.
525 + 424 =
4
2
949
3
|
10.
394 + 582 =
2
976
3
4
|
11.
875 – 848 =
27
2
4
3
|
12.
587 – 505 =
4
82
2
3
|
|
13.
880 + 22 =
4
3
2
902
|
14.
19 – 11 =
1
3
8
2
|
15.
387 + 491 =
2
3
878
4
|
16.
832 + 162 =
2
994
4
3
|
|
17.
9 + 8 =
4
17
2
3
|
18.
766 + 142 =
2
908
4
3
|
19.
794 + 175 =
2
4
969
3
|
20.
824 + 121 =
4
3
945
2
|