Maak de erbijsom en erafsom tot 1.000
In de mix
|
1.
113 + 218 =
2
331
|
2.
649 + 143 =
2
792
|
3.
681 – 536 =
2
145
|
4.
693 – 620 =
2
73
|
|
5.
378 – 55 =
323
2
|
6.
754 + 4 =
758
2
|
7.
915 – 810 =
105
2
|
8.
205 + 105 =
310
2
|
|
9.
863 + 23 =
886
2
|
10.
10 – 6 =
4
1
|
11.
34 – 31 =
1
3
|
12.
416 – 172 =
2
244
|
|
13.
153 + 72 =
2
225
|
14.
125 + 247 =
372
2
|
15.
584 – 235 =
349
2
|
16.
573 + 21 =
594
2
|
|
17.
485 + 141 =
2
626
|
18.
345 + 523 =
868
2
|
19.
948 + 3 =
2
951
|
20.
378 – 32 =
2
346
|