Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
745 – 86 =
659
2
|
2.
434 – 251 =
183
2
|
3.
802 – 408 =
394
2
|
4.
434 + 146 =
580
2
|
|
5.
992 + 6 =
2
998
|
6.
997 + 0 =
997
2
|
7.
474 – 226 =
2
248
|
8.
567 – 451 =
2
116
|
|
9.
62 + 768 =
830
2
|
10.
57 + 611 =
2
668
|
11.
307 + 266 =
573
2
|
12.
23 + 147 =
2
170
|
|
13.
837 + 118 =
2
955
|
14.
974 + 26 =
2
1000
|
15.
406 + 517 =
923
2
|
16.
103 + 870 =
973
2
|
|
17.
636 – 51 =
2
585
|
18.
13 – 3 =
1
10
|
19.
408 – 184 =
2
224
|
20.
3 – 3 =
0
2
|