Matematika

Pertanyaan

1. 8 hm2 + 7 dam2 = ... are
2. 9 ha - 10 are = ... m2
3. 6 ca - 5 dm2 = ... cm2
4. 38 hm2 + 9 km2 = ... ha
5. 400 ca - 10.000 dm2 = ... are

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