Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
43 – 28 =
1
15
3
2
|
2.
933 + 10 =
943
4
2
3
|
3.
811 + 130 =
3
4
941
2
|
4.
459 – 404 =
2
3
55
4
|
|
5.
824 + 106 =
930
2
4
3
|
6.
847 + 127 =
974
2
4
3
|
7.
697 – 85 =
612
2
4
3
|
8.
604 – 583 =
21
4
3
2
|
|
9.
134 – 18 =
116
4
3
2
|
10.
25 + 673 =
2
698
4
3
|
11.
323 – 276 =
47
4
2
3
|
12.
731 – 173 =
4
2
558
3
|
|
13.
690 + 93 =
3
2
4
783
|
14.
917 + 31 =
3
4
2
948
|
15.
131 – 15 =
2
116
4
3
|
16.
583 + 114 =
3
4
697
2
|
|
17.
821 – 184 =
4
2
3
637
|
18.
177 – 149 =
3
28
2
4
|
19.
59 + 802 =
2
3
4
861
|
20.
198 + 754 =
952
4
2
3
|