Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
341 + 284 =
625
4
3
2
|
2.
676 – 255 =
421
4
3
2
|
3.
844 – 296 =
3
4
548
2
|
4.
228 – 221 =
2
1
7
3
|
|
5.
664 + 161 =
2
4
825
3
|
6.
874 – 404 =
3
2
4
470
|
7.
517 – 181 =
336
2
3
4
|
8.
285 + 369 =
654
3
4
2
|
|
9.
145 – 129 =
4
3
2
16
|
10.
209 + 54 =
4
3
263
2
|
11.
70 + 912 =
2
982
4
3
|
12.
776 + 166 =
3
4
942
2
|
|
13.
140 – 121 =
4
3
19
2
|
14.
370 + 324 =
694
4
2
3
|
15.
856 – 404 =
4
3
452
2
|
16.
114 + 241 =
3
355
2
4
|
|
17.
306 – 129 =
177
3
4
2
|
18.
914 – 303 =
4
611
3
2
|
19.
709 + 89 =
798
3
2
4
|
20.
630 + 233 =
863
4
2
3
|