Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
985 – 753 =
232
2
|
2.
472 – 181 =
291
2
|
3.
748 – 625 =
2
123
|
4.
944 – 759 =
2
185
|
|
5.
564 – 395 =
2
169
|
6.
686 + 300 =
986
2
|
7.
666 – 3 =
2
663
|
8.
137 – 56 =
2
81
|
|
9.
525 – 103 =
422
2
|
10.
893 + 69 =
962
2
|
11.
458 + 331 =
2
789
|
12.
43 + 493 =
2
536
|
|
13.
526 – 54 =
2
472
|
14.
694 – 541 =
153
2
|
15.
174 + 803 =
2
977
|
16.
577 + 10 =
587
2
|
|
17.
217 – 133 =
2
84
|
18.
409 – 137 =
272
2
|
19.
238 + 70 =
2
308
|
20.
680 + 95 =
2
775
|