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Andrei [34K]
3 years ago
15

Hi can you guys help me know how to explain this?

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0
10 x 25 = 250, well 20 x 25 is just double that, its 10 doubled x 25 so he probably just added it up. repeated addition really helps with times tables. 
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