Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
385 – 366 =
2
19
|
2.
211 + 31 =
242
2
|
3.
562 – 444 =
118
2
|
4.
862 – 195 =
667
2
|
|
5.
757 – 715 =
2
42
|
6.
675 – 338 =
337
2
|
7.
902 + 12 =
2
914
|
8.
521 + 430 =
2
951
|
|
9.
356 – 134 =
222
2
|
10.
266 + 134 =
400
2
|
11.
315 – 102 =
213
2
|
12.
843 – 554 =
2
289
|
|
13.
730 + 251 =
981
2
|
14.
567 – 342 =
225
2
|
15.
282 + 247 =
2
529
|
16.
225 + 91 =
2
316
|
|
17.
744 + 148 =
892
2
|
18.
253 + 589 =
2
842
|
19.
755 – 125 =
2
630
|
20.
362 – 286 =
2
76
|