Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
709 + 106 =
2
815
|
2.
628 – 441 =
2
187
|
3.
291 + 246 =
537
2
|
4.
941 – 406 =
535
2
|
|
5.
891 + 79 =
970
2
|
6.
141 – 40 =
2
101
|
7.
921 – 550 =
371
2
|
8.
429 + 151 =
2
580
|
|
9.
211 – 9 =
202
2
|
10.
419 – 234 =
185
2
|
11.
41 + 561 =
602
2
|
12.
925 – 165 =
2
760
|
|
13.
104 – 13 =
2
91
|
14.
165 – 129 =
2
36
|
15.
315 – 66 =
2
249
|
16.
332 – 272 =
2
60
|
|
17.
105 + 217 =
322
2
|
18.
555 + 164 =
2
719
|
19.
745 + 32 =
2
777
|
20.
984 + 16 =
1000
2
|