Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
278 + 63 =
341
2
|
2.
957 – 440 =
2
517
|
3.
917 + 33 =
950
2
|
4.
151 – 98 =
2
53
|
|
5.
273 – 260 =
13
1
|
6.
544 + 7 =
551
2
|
7.
206 – 200 =
6
1
|
8.
181 + 660 =
841
2
|
|
9.
347 + 397 =
744
2
|
10.
948 + 40 =
2
988
|
11.
538 + 354 =
2
892
|
12.
891 + 93 =
2
984
|
|
13.
51 + 876 =
927
2
|
14.
964 – 166 =
798
2
|
15.
465 – 317 =
2
148
|
16.
637 + 245 =
882
2
|
|
17.
808 + 159 =
967
2
|
18.
640 + 176 =
2
816
|
19.
456 + 72 =
2
528
|
20.
982 + 8 =
2
990
|