1. Choose the correct weight. a) Does a jar of jam weigh 450 grams or 450 kilograms? b) Does a small boat weigh 2500 grams or 2500 kilograms? c) Does a laptop computer weigh 10 grams or 10 kilograms? d) Does a cup weigh 40 grams or 40 kilograms?
Remember: there are a number of different ways to write the same weight. For example:
6350g = 6kg 350g
2. Fill in the gaps. a) 2670g =
d) 4kg 932g = g) 6050g =
kg g kg
g b) 1265g = e) 6kg 9g =
g h) 3kg 754g = kg g g
g c) 9062g = f) 8kg 20g = i) 4030g =
kg g kg
Weights can also be written as fractions or decimals of a kilogram. For example: 1kg 500g = 1500g = 1.5kg
3. Complete the table. 2kg 250g
28kg 375g 19006g 7.1kg 12kg 005g 82079g
We can also record measurements of weight as fractions or decimals. For example: 1kg 465g = 1 465