Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
726 + 30 =
756
2
|
2.
408 – 338 =
2
70
|
3.
454 + 42 =
496
2
|
4.
329 + 266 =
595
2
|
|
5.
28 – 8 =
20
2
|
6.
52 – 3 =
49
2
|
7.
837 + 153 =
2
990
|
8.
34 – 10 =
2
24
|
|
9.
636 + 19 =
2
655
|
10.
471 – 126 =
2
345
|
11.
16 – 8 =
8
1
|
12.
428 – 116 =
312
2
|
|
13.
358 – 160 =
2
198
|
14.
696 – 611 =
2
85
|
15.
964 + 33 =
2
997
|
16.
619 – 301 =
2
318
|
|
17.
638 – 355 =
2
283
|
18.
927 + 61 =
988
2
|
19.
746 – 373 =
373
2
|
20.
152 + 4 =
156
2
|