Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
500 + 400 =
3
2
900
4
|
2.
139 – 40 =
2
4
99
3
|
3.
458 – 84 =
374
3
4
2
|
4.
26 + 217 =
4
243
3
2
|
|
5.
141 + 834 =
975
3
2
4
|
6.
433 – 285 =
4
148
2
3
|
7.
215 – 110 =
3
2
105
4
|
8.
318 + 632 =
3
950
4
2
|
|
9.
549 – 145 =
404
4
2
3
|
10.
877 – 359 =
3
2
518
4
|
11.
138 + 168 =
2
306
4
3
|
12.
485 + 408 =
3
893
2
4
|
|
13.
31 + 969 =
2
3
4
1000
|
14.
555 – 546 =
3
2
1
9
|
15.
60 + 776 =
2
3
836
4
|
16.
745 + 120 =
2
4
3
865
|
|
17.
319 + 613 =
3
4
2
932
|
18.
197 + 97 =
294
3
4
2
|
19.
485 – 301 =
3
184
4
2
|
20.
46 – 7 =
4
2
39
3
|