Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
414 + 319 =
733
2
|
2.
386 – 169 =
217
2
|
3.
981 – 401 =
580
2
|
4.
977 + 23 =
1000
2
|
|
5.
562 + 324 =
886
2
|
6.
430 – 426 =
1
4
|
7.
600 + 375 =
2
975
|
8.
346 + 302 =
2
648
|
|
9.
686 – 517 =
169
2
|
10.
97 + 503 =
2
600
|
11.
735 + 102 =
2
837
|
12.
318 – 129 =
2
189
|
|
13.
934 + 58 =
992
2
|
14.
713 + 34 =
2
747
|
15.
140 – 120 =
2
20
|
16.
655 – 342 =
313
2
|
|
17.
537 – 482 =
55
2
|
18.
235 + 319 =
2
554
|
19.
20 + 379 =
2
399
|
20.
756 – 649 =
2
107
|