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OpenStudy (silverlark2):
Hi, I am required to this without a calculator, hence is there a short cut for this? 18 x 10.9= _____ x (11-0.1) + 21.8 The answer is 16. Thanks! (:
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OpenStudy (dream95):
take the 2 out from 18 and times it with 10.9 and you will get 21.8
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