Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
688 – 413 =
4
3
2
275
|
2.
326 – 326 =
3
4
0
2
|
3.
592 + 246 =
838
2
3
4
|
4.
177 + 738 =
3
2
4
915
|
|
5.
778 – 658 =
2
3
4
120
|
6.
618 + 356 =
4
2
974
3
|
7.
168 + 351 =
3
2
519
4
|
8.
386 – 381 =
3
2
1
5
|
|
9.
858 + 117 =
2
975
3
4
|
10.
58 + 25 =
4
3
83
2
|
11.
414 – 231 =
4
3
183
2
|
12.
293 – 187 =
4
106
2
3
|
|
13.
413 + 501 =
4
3
2
914
|
14.
46 + 331 =
4
3
377
2
|
15.
874 + 15 =
3
889
2
4
|
16.
127 + 283 =
410
3
4
2
|
|
17.
205 – 170 =
2
35
3
4
|
18.
651 + 115 =
4
2
766
3
|
19.
841 – 144 =
2
3
697
4
|
20.
120 – 89 =
4
31
3
2
|