##### PACE - Grade 5 - Vocabulary - Ch. 3

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1

metric system

a decimal system of measurement

2

meter

the basic unit of length in the metric system - about 39 inches

3

millimeter

mm

0.001 meters

one-thousandth of a meter

4

centimeter

cm

0.01 meters

one-hundredth of a meter

5

kilometer

km

1000 meters

one thousand meters

6

clustering

when estimating sums or differences, rounding similar numbers to a common number

7

front-end estimation

when estimating sums or differences, using the two front-most digits to the numbers

8

circle graph

a graph used to compare parts of a whole

9

formula

an equation using letters, mainly used for particular purposes such as finding perimeter, area, volume, etc.