Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
527 – 326 =
2
201
|
2.
18 – 0 =
2
18
|
3.
600 + 154 =
754
2
|
4.
392 – 186 =
206
2
|
|
5.
874 – 367 =
507
2
|
6.
371 – 237 =
134
2
|
7.
931 + 46 =
977
2
|
8.
323 – 91 =
232
2
|
|
9.
659 – 254 =
2
405
|
10.
212 + 374 =
586
2
|
11.
769 – 352 =
2
417
|
12.
312 + 610 =
2
922
|
|
13.
871 – 300 =
571
2
|
14.
745 + 220 =
2
965
|
15.
923 + 26 =
949
2
|
16.
362 + 636 =
2
998
|
|
17.
387 + 180 =
2
567
|
18.
334 – 154 =
2
180
|
19.
176 – 118 =
58
2
|
20.
564 – 157 =
2
407
|