Math Word Problems Demystified - A Self Teaching Guide

REFRESHER I Decimals

To add or subtract decimals, place the numbers in a vertical column and line
up the decimal points. Add or subtract as usual and place the decimal point
in the answer directly below the decimal points in the problem.

EXAMPLE:Find the sum: 32.6þ231.58þ6.324.

SOLUTION:

32.600 Zeros can be written

231.580 to keep the columns

þ6.324 in line

270.504

EXAMPLE:Subtract 15.8
5.326.

SOLUTION:

15.800


5.326

10.474

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