Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
685 + 279 =
2
964
|
2.
60 – 1 =
59
2
|
3.
157 + 838 =
995
2
|
4.
809 + 14 =
2
823
|
|
5.
955 + 36 =
991
2
|
6.
44 – 8 =
36
2
|
7.
513 + 26 =
2
539
|
8.
76 – 20 =
2
56
|
|
9.
17 – 6 =
1
11
|
10.
278 + 302 =
2
580
|
11.
337 + 55 =
2
392
|
12.
636 – 424 =
2
212
|
|
13.
624 – 417 =
207
2
|
14.
653 + 60 =
713
2
|
15.
805 + 67 =
872
2
|
16.
429 + 70 =
499
2
|
|
17.
57 + 226 =
2
283
|
18.
598 + 387 =
2
985
|
19.
131 + 32 =
163
2
|
20.
366 + 497 =
863
2
|