Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
578 – 0 =
4
2
3
578
|
2.
1000 – 360 =
3
4
2
640
|
3.
163 + 351 =
2
3
4
514
|
4.
177 – 1 =
176
2
4
3
|
|
5.
484 + 92 =
2
4
3
576
|
6.
751 + 85 =
836
3
2
4
|
7.
168 + 508 =
4
676
2
3
|
8.
199 – 138 =
2
61
3
4
|
|
9.
45 + 103 =
148
3
4
2
|
10.
318 – 214 =
3
104
4
2
|
11.
902 + 86 =
4
3
2
988
|
12.
47 + 385 =
2
4
432
3
|
|
13.
815 – 108 =
3
4
2
707
|
14.
663 + 78 =
4
3
2
741
|
15.
261 – 171 =
3
90
2
4
|
16.
663 – 36 =
627
2
3
4
|
|
17.
734 – 80 =
4
2
654
3
|
18.
606 + 123 =
4
2
729
3
|
19.
390 + 321 =
711
4
2
3
|
20.
699 + 45 =
4
3
2
744
|