WorksheetsMultiplying Decimals Quiz
Total questions: 7
Worksheet time: 14mins
Use a mental method to work out a.)0.1 × −8 b.)0.2 × 3 c.)0.3 × −7 d.)0.7 × 8 e.)0.9 × −4
Use a mental method to work out a. −6 × 0.03 b. −9 × 0.2 c. −18 × 0.001 d. −20 × 0.9
-0.18
-1.8
-0.018
-18
Here are five calculation cards. a. Work out the answers to the calculations on the cards. b. Write the answers in order of size, starting with the smallest.
-7.04
-7.2
-70.2
-7.28
-7.65
Copy and complete these patterns. i. 2 × 4 = 8 0.2 × 4 = 0.8 0.2 × 0.4 = 0.08 0.2 × 0.04 = 0.008 0.2 × 0.004 = 0.0008 Work out. i.).1 × 0.09 ii.)0.6 × 0.8 iii.)0.07 × 0.4 iv.)0.03 × 0.05 v.)0.12 × 0.3 vi.)0.06 × 0.11
Work out 158 × 46. Use your answer to part a to write the answers to these multiplications i.)15.8 × 46 ii)158 × 4.6 iii.)15.8 × 4.6 iv.)1.58 × 4.6 v.)15.8 × 0.46 vi.)1.58 × 0.046
7268
726.8
72.68
726.8
7.268
A vet needs to work out how much medicine to give to a cat. The instructions for the medicine say: The cat has a mass of 5.8 kilograms. Give 7.3mg(medicine) per kg( mass of cat) a.)Work out an estimate of the number of milligrams (mg) of medicine that the cat needs. b.)Calculate the accurate number of milligrams (mg) of medicine that the cat needs.
A coin is made from silver and copper. The mass of the coin is 4.2 g. You can use this formula to work out the mass of silver in the coin: mass of silver=0.775 × mass of coin a.)Work out an estimate of the mass of the silver in this coin. b.)Calculate the accurate mass of the silver in this coin.
