How to play Target Number
- Choose a target, or press Surprise me.
- Type an attempt, for example 1+2+3+4+5+6+7+8×9.
- Press Check to see what your attempt makes.
- Keep adjusting until you hit the target. Press Give me a hint if you get stuck.
Maths skills this game builds
- Order of operations and brackets
- Place value: making 78 or 456
- Trial and improvement
- Mental calculation
Tips for parents and carers
- Start with a small target such as 50, and look at how big the 9 makes the total.
- Ask: “Which signs make the answer jump up?”
- Try to find a second way to reach the same target.
Using Target Number with a group or class
- Display a target and let pairs work for five minutes. Compare solutions: who found a different one?
- Set the classic 100 target as a take-home challenge.
- Remind children the digits must stay in order.
Frequently asked questions
Can I use brackets?
Yes. Use brackets, plus, minus and times. You may also stick digits together.
Does every target have a solution?
Many do, but not all. If you cannot find one, press the hint button.
What is the classic puzzle?
Making 100 using the digits 1 to 9 in order is a well-known challenge. Try the target 100.