Division: sharing, grouping and remainders · Usually met around P2
Missing factors
A missing factor is a division.
How to do it
Method
A missing factor is a division
7 × ? = 56 → 56 ÷ 7 = 8
Another way
Think of the table
7 times what is 56? 7 × 8 = 56, so ? = 8
In full
7 × ? = 56 is just 56 ÷ 7. Missing-factor questions are your first step into algebra. Solving 7x = 56 later on is exactly the same move.
Worked examples
Have a go first, then open each one for the answer and the working.
Example 1
3 × ? = 9
Show the answer and working
Answer: 3 × 3 = 9
3 × ? = 9 is 9 ÷ 3: 3 × 3 = 9
Example 2
4 × ? = 28
Show the answer and working
Answer: 4 × 7 = 28
4 × ? = 28 is 28 ÷ 4: 4 × 7 = 28
Example 3
6 × ? = 54
Show the answer and working
Answer: 6 × 9 = 54
6 × ? = 54 is 54 ÷ 6: 6 × 9 = 54
Practise it in the game →Division: sharing, grouping and remainders · Free to start, unlimited questions, no download