Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
668 + 250 =
2
918
|
2.
10 – 8 =
2
1
|
3.
230 + 396 =
626
2
|
4.
663 + 163 =
826
2
|
|
5.
349 – 137 =
212
2
|
6.
873 + 116 =
2
989
|
7.
440 + 206 =
646
2
|
8.
321 + 68 =
389
2
|
|
9.
456 + 205 =
661
2
|
10.
357 + 635 =
2
992
|
11.
725 – 134 =
591
2
|
12.
668 + 233 =
2
901
|
|
13.
997 + 0 =
997
2
|
14.
375 – 252 =
123
2
|
15.
149 – 72 =
2
77
|
16.
430 + 484 =
914
2
|
|
17.
676 + 243 =
2
919
|
18.
807 + 148 =
2
955
|
19.
948 + 8 =
956
2
|
20.
190 – 40 =
2
150
|