MATH - MEASUREMENT (CLASS V)
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MATH - MEASUREMENT (CLASS V) INTERNATIONAL BOARD CONVERSION OF UNIT MASS LENGTH QUANTITY
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MATH - MEASUREMENT (CLASS V)
- 6. β’ Length tells us how long or wide an object is. Measurement for stitching clothes Distance between school and college β’ The units of measurement of length are metre (m), kilometre (km), centimetre (cm) etc.
- 7. Mass tells us how much amount of matter is present in an object. The units of measurement of mass are gram (g), kilogram (kg) etc.
- 8. Capacity tells us how much amount of space is occupied by an object. The units of measurement of capacity are litre (l), kilolitre (kl) etc.
- 9. Thousandths period Ones period Thousandths period Ones period Thousandths period Ones period Ones Metre Thousandths period Ones period Ones Deca Metre Thousandths period Ones period Tens Ones Deca Metre Thousandths period Ones period Tens Ones Hecto Deca Metre Thousandths period Ones period Hundreds Tens Ones Hecto Deca Metre Thousandths period Ones period Hundreds Tens Ones Kilo Hecto Deca Metre Thousandths period Ones period Thousands Hundreds Tens Ones Kilo Hecto Deca Metre Decimals Tenths Decimals Tenths Deci Tenths 1 10 Deci Tenths Hundredths 1 10 Deci Tenths Hundredths 1 10 Deci Centi Hundredths π πππ Centi Thousandths Thousandths Milli Thousandths π ππππ Milli
- 10. K ing H enry D ied M ary D inβt C ry M uch Kilometre Hectometre Decametre Metre Decimetre Centimetre Millimetre km hm dam m dm cm mm 1 km = 1000 m 1 hm = 100 m 1 dam = 10 m Base unit 1 dm = 1/10 m 1 cm = 1/100 m 1 mm = 1/1000 m Measures of length
- 11. Add 51.23 dm and 98.50 dm dm 5 1 . 2 3 + 9 8 . 5 0 ------------------ dm 5 1 . 2 3 + 9 8 . 5 0 ------------------ 7 3 dm 5 1 . 2 3 + 9 8 . 5 0 ------------------ . 7 3 dm 5 1 . 2 3 + 9 8 . 5 0 ------------------ 9 . 7 3 dm 5 1 . 2 3 + 9 8 . 5 0 ------------------ 1 4 9 . 7 3
- 12. β’ Sam walked 2.40 km on Monday, 4.59 km on Tuesday and 3.21 km on Wednesday. How many kilometres did he walked in three days? Solution Distance covered by sam on Monday = 2.40 km Distance covered by sam on Tuesday = 4.59 km Distance covered by sam on Wednesday = 3.21 km Total distance covered by sam in three days = 2.40 km + 4.59 km + 3.21 km
- 13. Km 2 . 4 0 km + 4 . 5 9 km + 3 . 2 1 km --------------------- 0+9+1= 10 Km 1 2 . 4 0 km + 4 . 5 9 km + 3 . 2 1 km --------------------- 0 km 1+4+5+2= 12 Km 2 . 4 0 km + 4 . 5 9 km + 3 . 2 1 km --------------------- . 2 0 km 1 1+2+4+3= 10 1 0 Total distance covered by sam in three days = 10.20 km
- 14. β’ Subtract 78.59 hm from 90.20 hm hm 9 0 . 2 0 - 7 8 . 5 9 ------------------ hm 1 9 0 . 2 10 - 7 8 . 5 9 ------------------ 1 hm 1 9 0 . 2 10 - 7 8 . 5 9 ------------------ 1 hm 1 9 0 . 2 10 - 7 8 . 5 9 ------------------ 1 8 hm 1 9 10 . 2 10 - 7 8 . 5 9 ------------------ 1 hm 1 9 10 . 2 10 - 7 8 . 5 9 ------------------ 1 hm 1 9 10 . 2 10 - 7 8 . 5 9 ------------------ . 6 9 1 9 10 . 2 10 - 7 8 . 5 9 ---------------- 9 1 9 10 . 2 10 - 7 8 . 5 9 ---------------- 1 1
- 15. β’ The average length of a humpback whale is 13.93 m. The average length of a killer whale is 6.91 m. How much long the humpback whale than the killer whale? Solution: Length of humpback whale = 1 3 . 9 3 m Length of killer whale = 6 . 9 1 m Length of killer whale = - 6 . 9 1 m 2 m . 0 7 Humpback whale is 7.02 m longer than killer whale.
- 16. Kilometre Hectometre Decametre Metre Decimetre Centimetre Millimetre 1 10 100 1000 10000 100000 1000000 LENGTH
- 17. Kilometre Hectometre Decametre Metre Decimetre Centimetre Millimetre 1 10 100 1000 10000 100000 1000000 π ππ 1 10 100 1000 10000 100000
- 18. Kilometre Hectometre Decametre Metre Decimetre Centimetre Millimetre 1 10 100 1000 10000 100000 1000000 π ππ 1 10 100 1000 10000 100000 π πππ π ππ 1 10 100 1000 10000 π ππππ π πππ π ππ 1 10 100 1000 π πππππ π ππππ π πππ π ππ 1 10 100 π ππππππ π πππππ π ππππ π πππ π ππ 1 10 π πππππππ π ππππππ π πππππ π ππππ π πππ π ππ 1
- 19. Conversion between the units Millimetre Kilometre Hectometre Decametre Metre Decimetre Centimetre X 10 X 10 X 10 X 10 X 10 X 10 οΈ 10 οΈ 10 οΈ 10 οΈ 10 οΈ 10 οΈ 10
- 20. β’ Express 6 km in metres. Solution 1 km = 1000 m 6 km = 6 x 1000 = 6000 m
- 21. β’ Express 4 mm in metres. Solution 1 mm = π ππππ m 4 mm = 4 x π ππππ = 0.004 m
- 22. β’ Express 10 cm in metres. Solution 1 cm = π πππ m 10 cm = 10 x π πππ = 0.01 m
- 23. β’ Express 12 m 4 cm in millimetres. Solution 1 m = 1000 mm 12 m = 12 x 1000 = 12000 mm 1 cm = 10 mm 4 cm = 4 x 10 mm = 40 mm 12 m 4 cm = 12000 mm + 40 mm = 12040 mm
- 24. Choose the correct option How many metres are there in 6.5 km? 6500 m 650 m Correct answer 6500 m
- 25. β’ From 2 m of cloth 75 cm is taken out. How long cloth is left now? Solution: 1 m = 100 cm 2 m = 2 x 100 = 200 cm If 75 cm is taken out = 200 cm β 75 cm = 125 cm 1 cm = π πππ m 125 cm = πππ πππ m = 1.25 m
- 26. Tonnes Kilograms Grams Milligrams 1 1000 1000000 1000000000 MASS
- 27. Tonnes Kilograms Grams Milligrams 1 1000 1000000 1000000000 π ππππ 1 1000 1000000
- 28. Tonnes Kilograms Grams Milligrams 1 1000 1000000 1000000000 π ππππ 1 1000 1000000 π πππππππ π ππππ 1 ππππ π ππππππππππ π πππππππ π ππππ 1
- 29. Tonnes Kilograms Grams Milligrams X 1000 X 1000 X 1000 Γ· 1000 Γ· 1000 Γ· 1000
- 30. β’ Express 65 g in milligrams Solution 1 g = 1000 g 65 g = 65 x 1000 = 65000 mg
- 31. β’ The cost of 10 gram gold is 25000 rupees. What will be the cost of 1 kg gold? Solution 1 kg = 1000 g Cost of 1 gram gold is = πππππ ππ = 2500 rupees Cost of 1 kg gold is = 1000 x 2500 = 2500000 rupees = 25 Lakhs