Supersnelle erbijsommen en erafsommen tot 1.000
In de mix
|
1.
1 + 628 =
3
629
4
2
|
2.
85 + 509 =
4
2
594
3
|
3.
522 – 68 =
454
3
4
2
|
4.
630 – 356 =
274
3
2
4
|
|
5.
593 – 491 =
102
4
2
3
|
6.
597 – 439 =
2
4
3
158
|
7.
152 + 489 =
2
3
4
641
|
8.
259 – 48 =
3
211
2
4
|
|
9.
979 + 3 =
4
3
982
2
|
10.
322 – 313 =
3
9
1
2
|
11.
226 – 160 =
66
2
3
4
|
12.
803 + 174 =
2
977
3
4
|
|
13.
734 – 255 =
4
479
2
3
|
14.
475 + 167 =
2
642
4
3
|
15.
344 + 21 =
3
2
365
4
|
16.
334 + 405 =
739
4
3
2
|
|
17.
285 – 104 =
4
2
181
3
|
18.
621 – 38 =
2
3
583
4
|
19.
521 + 263 =
784
2
3
4
|
20.
452 + 105 =
3
557
2
4
|