Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
828 + 81 =
3
909
4
2
|
2.
536 – 304 =
3
4
2
232
|
3.
736 – 271 =
465
4
3
2
|
4.
253 – 163 =
90
4
2
3
|
|
5.
611 + 285 =
2
896
4
3
|
6.
273 – 171 =
2
102
4
3
|
7.
15 + 342 =
2
4
357
3
|
8.
967 + 29 =
3
4
2
996
|
|
9.
104 – 0 =
2
104
3
4
|
10.
905 – 455 =
2
450
4
3
|
11.
27 – 20 =
3
2
1
7
|
12.
146 – 135 =
2
3
1
11
|
|
13.
114 – 99 =
3
1
2
15
|
14.
864 + 99 =
3
2
4
963
|
15.
745 – 528 =
4
2
217
3
|
16.
947 + 42 =
4
989
2
3
|
|
17.
211 + 298 =
509
2
4
3
|
18.
444 – 321 =
3
2
123
4
|
19.
877 – 606 =
4
271
2
3
|
20.
457 – 452 =
1
2
5
3
|