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
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
Note: In conversion of unit, we always multiply when we go from higher unit to lower unit; such as from kg to g.
Step1: Add the gram column
Step2: Add the kg column
Add 75kg 582g and 13kg 410g
Add 94kg 215g and 6kg 757g
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?
Weight of rice = 5kg 300g
Weight of wheat flour = 4kg 200g
Total weight of both the packets = 5kg 300g + 4kg 200g
Step1: Subtract the gram column
Step2: Subtract the kg column
Subtract 13kg 410g from 75kg 582g
Dev weighs 39kg 900g. Manit weighs 35kg 600g. Who weighs more and by how much?
Dev’s weight = 39kg 900g
Manit’s weight = 35kg 600g
Dev weighs more by = 39kg 900g – 35kg 600g
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