Supersnelle erbijsommen en erafsommen tot 1.000
In de mix
|
1.
199 – 24 =
175
4
2
3
|
2.
326 – 16 =
3
4
2
310
|
3.
578 – 563 =
3
15
2
1
|
4.
999 – 963 =
2
36
4
3
|
|
5.
27 + 223 =
3
250
4
2
|
6.
73 – 29 =
4
44
3
2
|
7.
259 + 421 =
680
4
3
2
|
8.
101 – 54 =
47
2
4
3
|
|
9.
8 – 4 =
4
1
3
2
|
10.
921 + 78 =
3
4
2
999
|
11.
311 + 668 =
2
4
979
3
|
12.
45 + 915 =
960
3
2
4
|
|
13.
823 + 47 =
4
3
870
2
|
14.
834 + 75 =
3
2
909
4
|
15.
481 – 379 =
3
2
102
4
|
16.
323 – 181 =
3
4
2
142
|
|
17.
140 – 74 =
66
4
2
3
|
18.
571 – 323 =
2
248
3
4
|
19.
560 – 9 =
2
3
4
551
|
20.
254 – 149 =
2
4
3
105
|