Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
739 – 255 =
484
2
4
3
|
2.
966 – 686 =
280
3
4
2
|
3.
631 – 371 =
2
4
260
3
|
4.
880 – 712 =
2
4
168
3
|
|
5.
534 – 401 =
4
3
2
133
|
6.
454 + 452 =
2
3
906
4
|
7.
103 – 66 =
2
4
37
3
|
8.
287 – 158 =
4
3
129
2
|
|
9.
188 – 135 =
3
53
2
4
|
10.
275 – 248 =
4
27
3
2
|
11.
174 + 553 =
4
3
2
727
|
12.
771 + 0 =
3
771
2
4
|
|
13.
729 + 43 =
4
2
772
3
|
14.
183 + 348 =
3
4
531
2
|
15.
171 – 100 =
71
3
4
2
|
16.
397 + 602 =
2
4
999
3
|
|
17.
310 – 278 =
32
3
2
4
|
18.
506 – 300 =
2
3
4
206
|
19.
253 – 141 =
4
112
2
3
|
20.
389 + 434 =
2
4
3
823
|