Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
655 – 90 =
565
4
3
2
|
2.
645 – 423 =
3
222
4
2
|
3.
378 – 356 =
2
22
4
3
|
4.
840 + 9 =
3
2
4
849
|
|
5.
895 + 53 =
2
3
4
948
|
6.
137 + 643 =
4
780
3
2
|
7.
367 – 78 =
2
289
3
4
|
8.
761 – 324 =
3
437
2
4
|
|
9.
40 – 13 =
3
4
27
2
|
10.
375 – 365 =
2
10
3
1
|
11.
431 – 117 =
314
3
2
4
|
12.
464 – 367 =
4
3
97
2
|
|
13.
190 – 3 =
4
187
3
2
|
14.
476 – 391 =
3
85
2
4
|
15.
857 + 48 =
3
905
2
4
|
16.
301 + 386 =
687
4
2
3
|
|
17.
933 + 66 =
999
2
3
4
|
18.
57 + 423 =
3
4
2
480
|
19.
925 – 89 =
2
836
4
3
|
20.
540 – 327 =
213
3
2
4
|