Answer
5
Work Step by Step
Using a number line can help you visualize the concept of addition.
To find $1+4$ on the number line, start at 1 and move 4 units to the right.
$1+4=5$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - Chapter Review - 1-5 and 1-6 Operations with Real Numbers - Page 71: 56
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