Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
910 – 902 =
3
8
1
2
|
2.
455 + 18 =
473
3
2
4
|
3.
890 – 774 =
116
3
4
2
|
4.
220 – 29 =
2
191
3
4
|
|
5.
406 + 486 =
4
892
3
2
|
6.
175 + 371 =
3
2
4
546
|
7.
551 + 351 =
3
2
902
4
|
8.
588 – 100 =
2
3
4
488
|
|
9.
85 + 688 =
2
773
4
3
|
10.
913 + 23 =
936
4
2
3
|
11.
881 – 145 =
4
736
2
3
|
12.
698 + 142 =
4
2
840
3
|
|
13.
386 – 153 =
233
2
4
3
|
14.
45 + 123 =
2
4
168
3
|
15.
590 – 316 =
2
4
274
3
|
16.
521 + 215 =
4
2
736
3
|
|
17.
801 + 106 =
4
2
907
3
|
18.
609 + 225 =
2
834
4
3
|
19.
95 + 68 =
3
163
4
2
|
20.
845 – 378 =
3
4
2
467
|