Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
787 – 188 =
2
599
|
2.
616 – 214 =
402
2
|
3.
998 + 0 =
998
2
|
4.
149 – 65 =
2
84
|
|
5.
109 + 805 =
2
914
|
6.
981 + 5 =
2
986
|
7.
568 + 97 =
2
665
|
8.
192 + 51 =
243
2
|
|
9.
411 + 363 =
774
2
|
10.
666 – 334 =
332
2
|
11.
485 – 413 =
2
72
|
12.
675 + 64 =
739
2
|
|
13.
269 + 524 =
793
2
|
14.
192 + 468 =
660
2
|
15.
809 – 173 =
2
636
|
16.
7 – 6 =
2
1
|
|
17.
952 + 3 =
2
955
|
18.
953 – 35 =
918
2
|
19.
84 + 707 =
2
791
|
20.
708 + 200 =
2
908
|