Class 6 Maths Knowing Our Numbers Measuring Large Numbers or Quantities

Measuring Large Numbers or Quantities

We use units to measure large quantities.

 Type Quantity Conversion Used to Measure Length Millimeter (mm) N/A eg. thickness of pencil Length Centimeter (cm) 1 cm = 10 mm eg. length of a pencil Length Meter (m) 1 m = 100 cm eg. length of a classroom Length KiloMeter (km) 1 km = 1000 m eg. distance between cities Weight Gram (g) N/A eg. weight of a mobile phone Weight Kilogram (kg) 1 kg = 1000 g eg. weight of a human Capacity of a liquid Millilitre (ml) N/A eg. capacity of a Bottle of hair oil Capacity of a liquid Litre(l) N/A eg. capacity of a bucket of water

Problem: Medicines are packed in boxes, each weighing 4kg 400g. How many such boxes can be loaded in a van which cannot carry beyond 800kg.

Solution: 1kg = 1000g

Therefore, 4kg 500g = 4000g + 500g = 4500g

800kg = 800 x 1000g = 800000g

Number of boxes that can be loaded in van = 800000/4500

on dividing, we get quotient as 177 and remainder as 3500

So number of boxes that can be loaded =177 with 3500g spare space

Problem: The distance between the school and the house of a student is 1km 875m.Everyday she walks both ways. Find the total distance covered by her in six days.

Solution: 1km = 1000m

Distance between school and house = 1km 875m = 1000m + 875m = 1875m

Distance covered each day = 1875 x 2 = 3750m

Distance covered in 6 days = 3750 x 6 = 22500m

= 22.5 km or 22km 500m.

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