This document provides examples of using given multiplication facts to solve other math problems. It shows that if 2.22 x 0.8 = 1.776, then 2.22 x 1.6 can be solved and 1.776 ÷ 0.8 = 2.22. It also gives the fact that 4.23 x 9 = 38.07 and uses that to solve related problems: 42.3 x 9 = 380.7, 4.23 x 18 = 76.14, 380.7 ÷ 9 = 42.3, and 42.3 x 0.9 = 38.07. The document encourages estimating answers before calculating.

1. I can use given
information to solve
other problems
AQA Module 3

2. Starter Question
What other things can you
work out given that...
2.22 x 0.8 = 1.776

3. 2.22 x 0.8 = 1.776
22.2 x 0.8 = 17.76
2.22 x 1.6 = 3.552
1.776 ÷ 0.8 = 2.22
222 x 8 = 1776

4. Given that 4.23 x 9 = 38.07
Work out...
i) 42.3 x 9
ii) 4.23 x 18
iii) 380.7 ÷ 9
iv) 42.3 x 0.9

5. Given that 4.23 x 9 = 38.07
Work out...
i) 42.3 x 9 = 380.7
ii) 4.23 x 18 = 76.14
iii) 380.7 ÷ 9 = 42.3
iv) 42.3 x 0.9 = 38.07

6. Complete the sheet given.
For each question I also
want you to work out an
estimate for the answer
first.