Math homework help

Question

During one week, the stock market did the following: Monday rose 18 points, Tuesday rose 31 points, Wednesday dropped 5 points, Thursday rose 27 points and Friday dropped 38 points. If it started out at 1,196 on Monday, what did it end up on Friday?

Answer 1

This is a addition and subtraction problem.

It can be rewritten like this: 1196+18+31-5+27-38

To make this easier you can try it one at a time.

1196+18=1214

1214+31=1245

1245-5=1240

1240+27=1267

1267-38=1229

Answer 2

A rise is addition and a fall is subtraction. Simply take where the market began on Monday and add and subtract the rises and falls to arrive at the market closing number on Friday. You may also combine all the rises as positive numbers and combine all the falls as negative numbers, then add the three totals (rises, falls and beginning points) to reach the Friday closing value.

Answer 3

Rising is addition and dropping is subtraction. Add and subtract from 1196 to reach the final number for the time the market closed on Friday. Another way would be to add together all the rises as positive numbers, combine all the drops as negatives, combine the two totals and then combine this with 1196 to reach the final number (should end up the same).