Erbij en eraf tot 1.000
In de mix
|
1.
518 – 390 =
2
128
|
2.
437 + 324 =
761
2
|
3.
421 + 427 =
848
2
|
4.
487 + 27 =
514
2
|
|
5.
470 + 36 =
2
506
|
6.
524 + 143 =
2
667
|
7.
520 + 59 =
579
2
|
8.
961 + 36 =
2
997
|
|
9.
662 + 67 =
2
729
|
10.
345 + 187 =
2
532
|
11.
865 + 1 =
2
866
|
12.
228 – 113 =
115
2
|
|
13.
697 – 0 =
697
2
|
14.
947 – 719 =
2
228
|
15.
800 – 435 =
365
2
|
16.
588 – 467 =
121
2
|
|
17.
595 – 382 =
213
2
|
18.
673 – 546 =
2
127
|
19.
627 – 482 =
145
2
|
20.
765 – 754 =
11
1
|