Big times tables 11-20
Practise products such as 13 × 4, inverse divisions such as 144 ÷ 12, and missing factors in a controlled range.
How to solve this
- Use facts you already know: 13 × 4 is 10 × 4 plus 3 × 4, so 40 + 12 = 52.
- Division is the same fact backwards: if 12 × 12 = 144, then 144 ÷ 12 = 12.
- For a missing factor, ask which multiplication fact reaches the product: 15 × __ = 90 means 90 ÷ 15.
Examples
13 × 4
52
15 × __ = 90
6
144 ÷ 12
12