Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
796 – 11 =
785
2
|
2.
534 + 20 =
2
554
|
3.
124 – 83 =
2
41
|
4.
499 + 492 =
2
991
|
|
5.
975 – 12 =
963
2
|
6.
311 + 516 =
2
827
|
7.
93 – 3 =
90
2
|
8.
540 + 176 =
2
716
|
|
9.
306 – 122 =
2
184
|
10.
579 – 522 =
2
57
|
11.
242 + 607 =
849
2
|
12.
635 – 395 =
240
2
|
|
13.
128 – 55 =
73
2
|
14.
459 + 503 =
962
2
|
15.
452 + 332 =
2
784
|
16.
753 + 237 =
990
2
|
|
17.
967 + 16 =
983
2
|
18.
782 + 55 =
837
2
|
19.
224 + 293 =
2
517
|
20.
145 + 685 =
2
830
|