Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
305 – 29 =
3
2
4
276
|
2.
278 + 290 =
2
568
3
4
|
3.
305 – 224 =
2
81
3
4
|
4.
879 + 118 =
4
3
997
2
|
|
5.
737 – 700 =
37
3
2
4
|
6.
421 + 14 =
3
4
2
435
|
7.
67 – 31 =
2
36
3
4
|
8.
116 – 29 =
3
87
4
2
|
|
9.
160 – 128 =
2
3
4
32
|
10.
646 – 68 =
578
3
4
2
|
11.
271 + 301 =
572
4
3
2
|
12.
53 – 29 =
3
2
4
24
|
|
13.
798 – 527 =
271
3
2
4
|
14.
941 – 639 =
302
4
3
2
|
15.
468 – 245 =
4
3
2
223
|
16.
841 – 164 =
4
2
677
3
|
|
17.
355 + 334 =
4
689
3
2
|
18.
400 – 10 =
4
390
3
2
|
19.
770 + 145 =
2
915
3
4
|
20.
895 + 67 =
3
962
2
4
|