Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
273 + 363 =
636
2
|
2.
92 – 70 =
2
22
|
3.
805 – 726 =
79
2
|
4.
145 – 30 =
115
2
|
|
5.
93 + 507 =
2
600
|
6.
664 + 280 =
944
2
|
7.
445 – 167 =
278
2
|
8.
313 + 344 =
2
657
|
|
9.
653 + 284 =
937
2
|
10.
339 + 91 =
2
430
|
11.
558 + 157 =
2
715
|
12.
379 + 544 =
923
2
|
|
13.
477 – 120 =
2
357
|
14.
129 + 768 =
2
897
|
15.
434 + 183 =
2
617
|
16.
755 + 182 =
2
937
|
|
17.
329 + 581 =
910
2
|
18.
672 + 50 =
722
2
|
19.
92 + 383 =
475
2
|
20.
534 + 416 =
950
2
|