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August 3, 2015

Homework Help: Math estimating product

Posted by marko on Thursday, December 15, 2011 at 6:20pm.

18) 5 2/9 * 4 9/10
i got:
5 * 5 = 25

20)
1 7/10 * 8 1/12
i got:
2 * 8 = 16

22) 5 3/4 * 2 2/3
i got:
6 * 3 = 18

24) 5 4/5 * 9 1/2
i got:
6 * 9 = 45

are these write?

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