### Measuring Mass or (Weight)

**Tags:**Measuring mass or weight for class III, Compare and convert metric units of weight for class 3, Investigating weight, How to convert kilogram (kg) into gram (g), Measurement of mass, Measurement mass or weight worksheet PDF, Mass measurement unit practice page, Examples on unit of mass or weight, How add and subtract two weights, Standard unit of weight.### Measuring Mass (or weight)

Mass is a measure of how heavy something is. We use a balance scales or a weighing scales to measure mass (or weight)

Mass is measured in grams (g) and kilograms (kg). We use grams to weigh lighter objects and kilograms to weigh heavier objects.

1 kg = 1000g

Or

1000g = 1kg

The

__standard unit__of measurement of mass is Kilogram.**Conversion of kg into g**In order to convert kilograms into grams we multiply by 1000

__Example:__Change 4 kg into grams.Since 1 kg =1000g

4kg = 4 x 1000g

= 4000g

**Note:**In conversion of unit, we always multiply when we go from higher unit to lower unit; such as from kg to g.**Addition****Step1:**Add the gram column**Step2:**Add the kg column__Example 1:__Add 75kg 582g and 13kg 410g

__Example 2:__Add 94kg 215g and 6kg 757g

__Example 3:__Ravi purchased 5kg 300g of a packet of rice and 4kg 200g of a packet of wheat flour. How much is the total weight of both the packets?

__Solution:__Weight of rice = 5kg 300g

Weight of wheat flour = 4kg 200g

Total weight of both the packets = 5kg 300g + 4kg 200g

**Subtraction****Step1:**Subtract the gram column**Step2:**Subtract the kg column__Example1:__Subtract 13kg 410g from 75kg 582g

__Example2:__Dev weighs 39kg 900g. Manit weighs 35kg 600g. Who weighs more and by how much?

__Solution:__Dev’s weight = 39kg 900g

Manit’s weight = 35kg 600g

Dev weighs more by = 39kg 900g – 35kg 600g

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