Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
674 + 43 =
2
717
|
2.
980 – 752 =
2
228
|
3.
169 + 148 =
2
317
|
4.
7 + 972 =
979
2
|
|
5.
645 – 384 =
261
2
|
6.
585 – 509 =
2
76
|
7.
696 + 258 =
954
2
|
8.
6 + 24 =
30
2
|
|
9.
979 – 913 =
66
2
|
10.
966 + 29 =
995
2
|
11.
276 + 614 =
890
2
|
12.
33 – 0 =
33
2
|
|
13.
77 – 9 =
2
68
|
14.
590 – 487 =
103
2
|
15.
103 – 102 =
2
1
|
16.
489 + 450 =
939
2
|
|
17.
280 – 77 =
203
2
|
18.
993 + 1 =
994
2
|
19.
422 – 102 =
320
2
|
20.
60 – 59 =
2
1
|