Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
297 – 29 =
2
268
|
2.
206 + 124 =
2
330
|
3.
365 + 440 =
2
805
|
4.
437 + 498 =
2
935
|
|
5.
505 + 288 =
2
793
|
6.
994 – 902 =
2
92
|
7.
186 + 170 =
2
356
|
8.
903 – 633 =
2
270
|
|
9.
580 – 383 =
2
197
|
10.
7 + 127 =
2
134
|
11.
681 + 43 =
2
724
|
12.
79 + 728 =
2
807
|
|
13.
746 – 8 =
738
2
|
14.
859 – 606 =
2
253
|
15.
63 + 924 =
987
2
|
16.
175 – 5 =
170
2
|
|
17.
114 – 95 =
2
19
|
18.
476 – 246 =
2
230
|
19.
872 + 58 =
2
930
|
20.
385 + 397 =
782
2
|