Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
33 + 495 =
2
528
|
2.
963 – 753 =
210
2
|
3.
424 – 381 =
2
43
|
4.
818 + 118 =
936
2
|
|
5.
967 + 0 =
2
967
|
6.
456 + 318 =
774
2
|
7.
541 – 472 =
69
2
|
8.
813 – 789 =
24
2
|
|
9.
113 + 210 =
323
2
|
10.
835 – 302 =
2
533
|
11.
7 – 1 =
1
6
|
12.
380 – 351 =
2
29
|
|
13.
885 – 565 =
2
320
|
14.
988 + 8 =
996
2
|
15.
577 + 140 =
2
717
|
16.
94 – 3 =
2
91
|
|
17.
203 + 253 =
2
456
|
18.
997 – 508 =
2
489
|
19.
734 + 69 =
803
2
|
20.
124 + 739 =
2
863
|