How do you evaluate #(8.4- 4.5) \times ( 7.04- 0.04)#?

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Answer 1 · 2017-03-10T15:15:53

#27.3#

#(color(blue)(8.4 -4.5)) xx color(red)((7.04 - 0.04))#

There are two factors shown in brackets.

Before they can be multiplied we have to work each one out first.

#=(color(blue)(3.9)) xx color(red)((7)#

To multiply with decimals, ignore the decimal point and first just multiply as normal.

#39 xx 7 = 273#

There was ONE decimal place (#3color(blue)(.9))# so there needs to be ONE place in the answer.

#3.9 xx 7 = 27color(blue)(.3)#