Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
473 + 352 =
2
825
|
2.
827 + 115 =
2
942
|
3.
406 – 299 =
2
107
|
4.
24 + 964 =
2
988
|
|
5.
835 + 58 =
893
2
|
6.
798 – 152 =
646
2
|
7.
961 + 15 =
2
976
|
8.
648 – 326 =
322
2
|
|
9.
64 – 1 =
63
2
|
10.
310 – 236 =
2
74
|
11.
117 + 264 =
381
2
|
12.
768 + 170 =
938
2
|
|
13.
649 + 158 =
807
2
|
14.
486 – 92 =
2
394
|
15.
225 + 629 =
2
854
|
16.
285 + 372 =
2
657
|
|
17.
85 – 85 =
2
0
|
18.
115 – 3 =
2
112
|
19.
365 + 279 =
2
644
|
20.
114 + 694 =
2
808
|