Supersnelle erbijsommen en erafsommen tot 1.000
In de mix
|
1.
309 + 421 =
4
3
730
2
|
2.
281 – 241 =
40
2
4
3
|
3.
384 – 243 =
3
141
4
2
|
4.
935 + 15 =
4
950
2
3
|
|
5.
509 – 38 =
471
4
2
3
|
6.
316 – 153 =
4
3
2
163
|
7.
417 + 546 =
3
963
4
2
|
8.
285 + 339 =
4
3
2
624
|
|
9.
593 – 387 =
206
3
4
2
|
10.
715 – 598 =
2
3
117
4
|
11.
244 – 140 =
4
2
3
104
|
12.
199 + 200 =
2
399
3
4
|
|
13.
724 + 160 =
3
2
4
884
|
14.
142 + 732 =
2
874
4
3
|
15.
578 + 376 =
4
3
2
954
|
16.
185 – 131 =
2
54
4
3
|
|
17.
275 – 86 =
3
2
4
189
|
18.
492 – 92 =
400
2
3
4
|
19.
263 – 127 =
2
3
136
4
|
20.
946 + 10 =
4
2
3
956
|