Maak de erbijsom en erafsom tot 1.000
In de mix
|
1.
473 + 348 =
2
821
|
2.
157 + 666 =
823
2
|
3.
917 – 388 =
529
2
|
4.
155 + 181 =
336
2
|
|
5.
499 – 161 =
2
338
|
6.
412 – 76 =
336
2
|
7.
477 – 93 =
2
384
|
8.
298 + 159 =
457
2
|
|
9.
274 + 446 =
2
720
|
10.
133 + 63 =
2
196
|
11.
438 – 415 =
23
2
|
12.
211 – 75 =
2
136
|
|
13.
444 – 133 =
311
2
|
14.
369 – 263 =
106
2
|
15.
360 – 58 =
2
302
|
16.
449 – 233 =
2
216
|
|
17.
639 + 330 =
969
2
|
18.
89 – 28 =
61
2
|
19.
146 + 569 =
2
715
|
20.
957 – 868 =
89
2
|