Page 183 - Math Genius C4

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Mind Map
math Creative Thinking
MeASureMent

Metric Measure System
Measuring length Measuring weight Measuring capacity
Base unit Metre (m) Base unit Gram (g) Base unit Litre (L)
1 km = 10 hm = 100 dam = 1000 m 1 kg = 10 hg = 100 dag = 1000 g 1 kL = 10 hL = 100 daL = 1000 L
1 hm = 10 dam = 100 m 1 hg = 10 dag = 100 g 1 hL = 10 daL = 100 L
1 dam = 10 m 1 dag = 10 g 1 daL = 10 L
1 m = 10 dm = 100 cm = 1000 mm 1 g = 10 dg = 100 cg = 1000 mg 1 L = 10 dL = 100 cL = 1000 mL
1 dm = 10 cm = 100 mm 1 dg = 10 cg = 100 mg 1 dL = 10 cL = 100 mL
1 cm = 10 mm 1 cg = 10 mg 1 cL = 10 mL

Conversion of Metric units of Length, Weight and Capacity

To convert a bigger unit to a smaller unit, we multiply.

×10 ×10 ×10 ×10 ×10 ×10

km/kg/kL hm/hg/hL dam/dag/daL m/g/L dm/dg/dL cm/cg/cL mm/mg/mL

÷10 ÷10 ÷10 ÷10 ÷10 ÷10
To convert a smaller unit to a bigger unit, we divide.

Addition and Subtraction of Metric Measures of Length, Weight and Capacity

kg g mg km m cm kL L mL

1 1 1 1 17 1 1 2 1 1
4 7 14 2 15 1 0 8 5 9 7 6
1 9 8 0 0 9 2 5
5 8 4 0 0 3 5 2 7 5 0 4 2 1
+ 2 6 3 0 0 4 6 8
– 3 9 7 0 0 1 8 + 4 3 2 0 7 2 5
4 6 1 0 1 3 9 3 1 8 7 0 0 1 7 8 1 5 7 1 2 2

Mental Maths Logical Thinking
Fill in the blanks.

1. 2 m = ____________ mm.
2. 2000 mL = ____________ L.
3. 1 gram = ____________ centigram.
4. If 3 km 500 m is subtracted from 10 km, then the result is ____________.
5. If 8 L of juice is distributed out of 10 L 500 mL of juice, the quantity of juice left is ____ mL.

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