Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
104 + 828 =
2
932
|
2.
284 – 160 =
124
2
|
3.
738 – 255 =
2
483
|
4.
639 + 145 =
2
784
|
|
5.
401 – 52 =
2
349
|
6.
467 + 75 =
542
2
|
7.
802 + 164 =
966
2
|
8.
303 – 9 =
294
2
|
|
9.
409 – 257 =
2
152
|
10.
508 – 55 =
453
2
|
11.
360 + 424 =
2
784
|
12.
983 + 16 =
2
999
|
|
13.
346 + 540 =
886
2
|
14.
948 + 17 =
965
2
|
15.
912 + 25 =
2
937
|
16.
849 + 148 =
2
997
|
|
17.
310 + 353 =
2
663
|
18.
849 – 478 =
371
2
|
19.
124 + 492 =
616
2
|
20.
628 – 478 =
2
150
|