Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
23 + 655 =
4
2
678
3
|
2.
402 + 149 =
2
4
3
551
|
3.
962 + 36 =
2
998
4
3
|
4.
4 + 872 =
2
3
4
876
|
|
5.
527 + 258 =
3
2
785
4
|
6.
610 + 319 =
929
2
4
3
|
7.
799 + 139 =
3
2
4
938
|
8.
554 – 383 =
3
4
171
2
|
|
9.
877 + 50 =
4
2
927
3
|
10.
378 – 235 =
4
3
2
143
|
11.
336 – 227 =
109
3
2
4
|
12.
747 – 700 =
4
47
3
2
|
|
13.
796 + 108 =
904
4
3
2
|
14.
456 + 23 =
4
3
2
479
|
15.
225 – 37 =
4
188
3
2
|
16.
21 + 444 =
3
2
465
4
|
|
17.
717 + 210 =
3
4
927
2
|
18.
747 – 171 =
4
3
576
2
|
19.
554 – 266 =
4
2
3
288
|
20.
229 + 409 =
4
2
3
638
|