Multiplying decimals: first steps
Answers are for parents and teachers.
1
Work out 6.25 × 10, 6.25 × 100 and 6.25 × 1,000.
62.5; 625; 6,250.
2
Work out 4.7 × 8.
47 × 8 = 376, one decimal place: 37.6.
3
Work out 0.65 × 14.
65 × 14 = 910, two decimal places: 9.10 = 9.1.
4
Work out 0.7 × 0.9.
7 × 9 = 63, two decimal places: 0.63.
5
A water tank holds 2.5 L. How many litres do 36 tanks hold? How many litres do 100 tanks hold?
25 × 36 = 900, one decimal place: 90 L. And 2.5 × 100 = 250 L.