Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
293 – 46 =
247
2
|
2.
743 + 56 =
799
2
|
3.
646 – 388 =
2
258
|
4.
348 + 445 =
2
793
|
|
5.
184 + 222 =
2
406
|
6.
130 – 1 =
2
129
|
7.
953 – 299 =
2
654
|
8.
832 + 92 =
2
924
|
|
9.
470 + 48 =
2
518
|
10.
383 + 104 =
2
487
|
11.
507 + 456 =
963
2
|
12.
388 + 319 =
2
707
|
|
13.
782 + 160 =
2
942
|
14.
906 + 90 =
2
996
|
15.
456 – 266 =
2
190
|
16.
674 + 229 =
903
2
|
|
17.
482 – 201 =
2
281
|
18.
205 – 99 =
106
2
|
19.
299 – 110 =
2
189
|
20.
118 – 27 =
91
2
|