Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
715 + 94 =
2
809
|
2.
366 – 346 =
2
20
|
3.
333 – 136 =
2
197
|
4.
166 – 159 =
1
7
|
|
5.
745 + 172 =
2
917
|
6.
744 – 59 =
2
685
|
7.
644 + 336 =
2
980
|
8.
49 – 47 =
2
1
|
|
9.
129 + 573 =
702
2
|
10.
890 + 35 =
2
925
|
11.
598 + 357 =
2
955
|
12.
817 + 117 =
2
934
|
|
13.
234 + 761 =
2
995
|
14.
290 + 412 =
702
2
|
15.
294 – 198 =
2
96
|
16.
388 – 4 =
2
384
|
|
17.
930 – 772 =
158
2
|
18.
153 – 93 =
2
60
|
19.
907 + 32 =
939
2
|
20.
405 + 11 =
416
2
|