Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
833 + 163 =
2
996
|
2.
498 – 235 =
263
2
|
3.
283 + 72 =
355
2
|
4.
588 + 65 =
653
2
|
|
5.
748 + 153 =
2
901
|
6.
860 – 540 =
320
2
|
7.
571 – 471 =
100
2
|
8.
298 + 325 =
2
623
|
|
9.
448 + 512 =
960
2
|
10.
207 – 113 =
94
2
|
11.
699 + 224 =
2
923
|
12.
615 – 62 =
553
2
|
|
13.
659 – 394 =
265
2
|
14.
411 – 196 =
2
215
|
15.
982 + 5 =
987
2
|
16.
445 + 335 =
2
780
|
|
17.
752 – 434 =
2
318
|
18.
331 – 198 =
133
2
|
19.
401 – 262 =
2
139
|
20.
706 + 134 =
840
2
|