Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
247 + 52 =
2
4
3
299
|
2.
387 + 53 =
3
440
2
4
|
3.
760 + 17 =
2
777
4
3
|
4.
500 + 156 =
2
3
656
4
|
|
5.
763 – 685 =
4
3
78
2
|
6.
844 – 704 =
140
4
3
2
|
7.
783 + 155 =
938
4
3
2
|
8.
424 + 56 =
480
2
4
3
|
|
9.
682 – 162 =
4
2
520
3
|
10.
39 + 620 =
2
659
3
4
|
11.
726 – 298 =
4
428
2
3
|
12.
521 – 182 =
4
339
3
2
|
|
13.
927 – 62 =
4
865
3
2
|
14.
4 – 1 =
4
3
2
1
|
15.
342 + 543 =
4
885
3
2
|
16.
183 + 155 =
4
338
2
3
|
|
17.
101 + 375 =
3
476
4
2
|
18.
286 + 137 =
423
3
4
2
|
19.
628 – 385 =
3
243
4
2
|
20.
746 – 246 =
3
500
4
2
|