Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
541 + 7 =
548
2
|
2.
435 – 135 =
300
2
|
3.
648 – 493 =
155
2
|
4.
319 + 29 =
348
2
|
|
5.
92 – 81 =
1
11
|
6.
712 – 301 =
411
2
|
7.
410 + 558 =
968
2
|
8.
301 + 191 =
492
2
|
|
9.
797 + 85 =
882
2
|
10.
773 + 60 =
2
833
|
11.
77 + 509 =
586
2
|
12.
31 – 15 =
16
2
|
|
13.
449 + 302 =
2
751
|
14.
745 – 614 =
2
131
|
15.
375 – 289 =
86
2
|
16.
615 + 379 =
994
2
|
|
17.
785 – 110 =
2
675
|
18.
823 – 27 =
2
796
|
19.
688 + 165 =
853
2
|
20.
612 + 233 =
845
2
|