Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
517 – 67 =
450
4
2
3
|
2.
958 + 20 =
978
2
3
4
|
3.
610 – 236 =
2
4
3
374
|
4.
910 – 815 =
4
3
95
2
|
|
5.
248 + 315 =
4
3
2
563
|
6.
44 + 945 =
2
4
3
989
|
7.
388 + 138 =
2
3
526
4
|
8.
579 + 293 =
4
3
2
872
|
|
9.
362 – 244 =
118
4
2
3
|
10.
314 + 366 =
3
4
680
2
|
11.
9 + 781 =
2
3
4
790
|
12.
15 – 9 =
3
6
2
1
|
|
13.
207 – 28 =
4
3
179
2
|
14.
400 – 147 =
3
2
253
4
|
15.
277 – 271 =
1
2
6
3
|
16.
852 + 78 =
4
3
930
2
|
|
17.
671 – 151 =
520
2
3
4
|
18.
117 – 75 =
4
3
2
42
|
19.
304 + 599 =
4
903
3
2
|
20.
161 – 134 =
4
3
27
2
|