Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
523 + 473 =
2
996
|
2.
166 – 152 =
14
1
|
3.
295 – 17 =
278
2
|
4.
915 – 639 =
276
2
|
|
5.
307 – 48 =
259
2
|
6.
220 – 60 =
160
2
|
7.
35 + 236 =
2
271
|
8.
59 + 407 =
466
2
|
|
9.
468 + 343 =
811
2
|
10.
752 + 149 =
901
2
|
11.
587 + 211 =
2
798
|
12.
901 – 71 =
830
2
|
|
13.
953 + 32 =
985
2
|
14.
400 + 465 =
865
2
|
15.
632 + 163 =
2
795
|
16.
996 – 379 =
617
2
|
|
17.
195 + 130 =
2
325
|
18.
975 – 708 =
2
267
|
19.
26 – 23 =
3
1
|
20.
387 + 464 =
851
2
|