Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
142 + 773 =
915
2
|
2.
70 + 817 =
887
2
|
3.
336 – 296 =
2
40
|
4.
926 – 87 =
839
2
|
|
5.
419 – 378 =
41
2
|
6.
143 + 414 =
2
557
|
7.
737 + 134 =
871
2
|
8.
891 + 9 =
900
2
|
|
9.
365 – 191 =
2
174
|
10.
903 + 89 =
992
2
|
11.
65 + 398 =
463
2
|
12.
367 + 381 =
748
2
|
|
13.
91 + 187 =
278
2
|
14.
728 – 69 =
2
659
|
15.
687 – 241 =
2
446
|
16.
26 – 14 =
12
1
|
|
17.
209 + 162 =
371
2
|
18.
629 + 22 =
651
2
|
19.
206 – 184 =
22
2
|
20.
825 + 154 =
979
2
|