Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
254 – 169 =
3
4
2
85
|
2.
962 – 634 =
2
328
3
4
|
3.
43 – 39 =
3
2
1
4
|
4.
385 – 287 =
98
4
3
2
|
|
5.
145 + 609 =
4
754
3
2
|
6.
813 – 754 =
3
59
2
4
|
7.
694 + 89 =
4
783
2
3
|
8.
467 + 248 =
3
2
715
4
|
|
9.
175 – 74 =
3
4
101
2
|
10.
465 + 355 =
4
2
3
820
|
11.
434 + 72 =
506
4
2
3
|
12.
713 + 14 =
2
3
4
727
|
|
13.
108 + 234 =
342
4
3
2
|
14.
46 + 493 =
3
2
4
539
|
15.
816 – 723 =
93
4
3
2
|
16.
845 + 39 =
3
4
2
884
|
|
17.
19 + 893 =
2
4
3
912
|
18.
719 + 12 =
2
731
3
4
|
19.
573 + 380 =
3
4
2
953
|
20.
280 – 150 =
3
2
130
4
|