Question

Seven and thirty twp hundreths plus two and one tenth times two and seven tenths minus 18a

Answer 1

Answer: Write the expression as:

" 70
`(32)/(100)` +
2
`(1)/(10)` * 2
− 18a " ;
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or; write as:
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" 70.32 + (2.1) * (2.7) − 18a " ;
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To simplify:
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Using "PEDMAS" (the "order of operations") ;

the "multiplication" comes first;

So: → "(2.1) * (2.7) = 5.67 " .

And rewrite:
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" 70.32 + 5.67 − 18a " .

Now: " 70.32 + 5.67 = 75.99 " ;

So, we can the final simplified expression as:
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" 75.99 − 18a " ;

or; write as: " 75
`(99)/(100)` − 18a " .
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