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30 tens - 3 tens 3 tenths

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Meerkat18id
we are given the expression 30 tens - 3 tens 3 tenths. In this case, a number proceeded by "tens" means that the number is multiplied by 10 while "tenths" means that the number is divided by 10. In this case, 30*10 - 3*10*3/10 equal to 300 - 9 or 291. 
Creadwrightid

 

When I worked it out, I got this.

30 tens=300

3 tens= 30

3 tenths = .3

So 300-30.3= 269.7

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