How do you solve #-13 \cdot ( - 2.3) #?

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Answer 1 · 2017-10-11T17:07:20

#-13*(-2.3)#
Step 1: #=13*2.3#
Step 2: #=29.9#

To get to Step 1, I simply utilized the idea that #-13 = -1 * 13# and #-2.3 = -1 * 2.3#. Thus

#-1*13*-1*2.3#

#=-1*-1*13*2.3#

#=(-1*-1)*13*2.3)#

#=13*2.3#

For Step 2, I multiplied #13# and #2.3#. This can be done with a calculator or with scratch paper.