Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
113 – 22 =
91
2
|
2.
620 – 566 =
54
2
|
3.
961 – 895 =
2
66
|
4.
695 – 526 =
169
2
|
|
5.
861 – 56 =
805
2
|
6.
618 – 528 =
90
2
|
7.
788 + 67 =
2
855
|
8.
119 – 38 =
81
2
|
|
9.
595 – 126 =
2
469
|
10.
923 + 11 =
2
934
|
11.
979 – 776 =
2
203
|
12.
933 + 2 =
2
935
|
|
13.
914 – 737 =
177
2
|
14.
203 + 251 =
2
454
|
15.
450 + 461 =
2
911
|
16.
201 – 69 =
132
2
|
|
17.
524 + 305 =
2
829
|
18.
446 – 288 =
2
158
|
19.
1 + 597 =
598
2
|
20.
936 – 671 =
2
265
|