Je oefent optellen en aftrekken met grotere getallen.
2345 + 1200 = ...
3545
5600 + 3400 = ...
9000
7890 - 450 = ...
7440
12000 + 8000 = ...
20000
45000 - 17000 = ...
28000
123000 + 45000 = ...
168000
780000 - 230000 = ...
550000
9999 + 1001 = ...
11000
60000 - 25000 = ...
35000
3456 + 2789 = ...
6245
8000 - 3650 = ...
4350
27500 + 12500 = ...
40000
91000 - 48000 = ...
43000
250000 + 175000 = ...
425000
1000000 - 250000 = ...
750000
43210 + 56790 = ...
100000
700000 - 123000 = ...
577000
305000 + 95000 = ...
400000
8900 + 1100 = ...
10000
76000 - 16000 = ...
60000