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Subject – Mathematics

Chapter 8 – METRIC MEASUREMENTS

Sub-topic 5 : COMPARING AND ORDERING OF METRIC
MEASUREMENTS:

Comparing Metric Measurements:

Sometimes you will want to compare different metric measurements.
Knowing how to convert between metric units of measure and how to
compare decimal numbers makes this possible.

You can compare two metric measurements in the same way that you
compare decimal numbers. You just have to make sure that your
measurements are in the same unit first.

Here are the steps for comparing metric measurements.

1. If necessary, convert one of the measurements so that both
measurements are in the same unit.

2. Working from left to right, compare digits that have the same place
value. Starting with the digit on the left and moving right, whichever
number first has a larger digit is the larger number overall.

You can use an inequality symbol to show how two metric
measurements are related.

Here is an example.

4.56 g ––––– 456 mg
First, you want both measurements to be in the same unit. It doesn’t
matter which unit you convert. Let’s convert 4.56 g to mg.

Now, notice that you are going from a larger unit to a smaller unit. This
means you will need to multiply and move the decimal point to the right.
Because there are 1000 milligrams in a gram, you will need to move the
decimal point 3 to the right.

4.56×10004.56 g==45604560 mg
Next, rewrite your problem with both measurements in the same unit.

4560 mg ––––– 456 mg