Supersnelle erbijsommen en erafsommen tot 1.000
In de mix
|
1.
936 – 819 =
117
3
4
2
|
2.
992 – 578 =
414
3
4
2
|
3.
558 – 0 =
558
2
4
3
|
4.
509 + 5 =
4
3
2
514
|
|
5.
15 + 708 =
4
2
3
723
|
6.
981 + 1 =
982
3
4
2
|
7.
578 + 336 =
4
2
914
3
|
8.
478 + 476 =
3
2
954
4
|
|
9.
484 – 17 =
467
2
4
3
|
10.
429 – 289 =
2
4
3
140
|
11.
764 – 415 =
2
4
349
3
|
12.
387 – 20 =
3
367
2
4
|
|
13.
136 + 194 =
3
2
330
4
|
14.
274 + 715 =
2
3
4
989
|
15.
949 + 50 =
3
2
999
4
|
16.
802 + 6 =
3
2
808
4
|
|
17.
50 – 8 =
2
3
42
4
|
18.
130 + 185 =
4
315
3
2
|
19.
153 + 259 =
4
2
412
3
|
20.
403 + 104 =
2
4
507
3
|