Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
152 + 428 =
2
580
|
2.
470 – 310 =
2
160
|
3.
210 + 578 =
788
2
|
4.
226 – 61 =
2
165
|
|
5.
25 – 2 =
2
23
|
6.
264 – 27 =
2
237
|
7.
419 – 337 =
2
82
|
8.
181 + 702 =
2
883
|
|
9.
78 + 685 =
2
763
|
10.
80 – 23 =
2
57
|
11.
309 – 295 =
1
14
|
12.
125 – 13 =
2
112
|
|
13.
574 – 244 =
2
330
|
14.
263 – 60 =
203
2
|
15.
111 + 747 =
2
858
|
16.
969 – 794 =
2
175
|
|
17.
29 + 923 =
2
952
|
18.
101 – 90 =
1
11
|
19.
46 – 24 =
2
22
|
20.
725 + 2 =
2
727
|