Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
987 + 2 =
2
4
989
3
|
2.
587 + 7 =
594
3
2
4
|
3.
70 + 184 =
4
2
3
254
|
4.
708 + 253 =
961
3
4
2
|
|
5.
522 + 59 =
3
4
581
2
|
6.
94 – 71 =
3
2
23
4
|
7.
169 + 657 =
3
826
4
2
|
8.
205 – 183 =
2
3
22
4
|
|
9.
495 – 39 =
4
2
3
456
|
10.
636 – 230 =
4
2
3
406
|
11.
539 – 225 =
3
314
4
2
|
12.
788 + 81 =
869
4
3
2
|
|
13.
90 + 246 =
2
3
4
336
|
14.
387 – 89 =
2
4
298
3
|
15.
769 – 364 =
3
4
405
2
|
16.
548 + 177 =
2
3
725
4
|
|
17.
762 + 24 =
2
786
4
3
|
18.
385 – 152 =
233
3
4
2
|
19.
755 + 137 =
892
4
2
3
|
20.
518 + 247 =
765
4
2
3
|