Erbij en eraf tot 1.000
In de mix
|
1.
15 – 13 =
2
1
|
2.
914 + 70 =
2
984
|
3.
565 + 389 =
2
954
|
4.
940 – 141 =
2
799
|
|
5.
500 – 281 =
219
2
|
6.
405 – 236 =
169
2
|
7.
399 – 233 =
2
166
|
8.
268 – 118 =
2
150
|
|
9.
359 + 554 =
913
2
|
10.
361 – 78 =
283
2
|
11.
440 – 323 =
117
2
|
12.
448 – 51 =
397
2
|
|
13.
38 + 889 =
2
927
|
14.
957 + 34 =
991
2
|
15.
347 + 426 =
773
2
|
16.
66 + 6 =
72
2
|
|
17.
153 + 581 =
734
2
|
18.
184 + 773 =
957
2
|
19.
59 – 47 =
12
1
|
20.
103 + 108 =
211
2
|