Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
748 – 354 =
394
2
|
2.
793 – 550 =
2
243
|
3.
241 + 184 =
2
425
|
4.
98 – 79 =
19
2
|
|
5.
139 + 821 =
960
2
|
6.
336 – 160 =
176
2
|
7.
532 + 137 =
669
2
|
8.
767 + 221 =
988
2
|
|
9.
976 + 24 =
2
1000
|
10.
942 + 28 =
2
970
|
11.
158 – 32 =
2
126
|
12.
165 + 609 =
2
774
|
|
13.
758 – 24 =
734
2
|
14.
130 + 545 =
2
675
|
15.
685 + 186 =
2
871
|
16.
60 – 43 =
17
2
|
|
17.
896 – 98 =
2
798
|
18.
334 – 232 =
102
2
|
19.
838 – 154 =
684
2
|
20.
426 + 557 =
983
2
|