MINI GAME / MATH
Plus Minus Challenge
PLUS MINUS CHALLENGE
Look at an expression and decide whether its value is positive or negative.
Practise sign rules with the buttons or the ↑ and ↓ arrow keys.
ABOUT THIS GAME
About this game
Find the sign before the value.
With positive and negative numbers, you can often find the sign before calculating the full value.
Read expressions with brackets or multiplication, then choose the sign of the answer.
Press ↑ for positive and ↓ for negative, or use the buttons. Practise the sign rules over 10 questions.
POINT
What to focus on
01
Answer with the arrow keys
Press ↑ for + and ↓ for −. Use the keyboard to practise at a steady pace.
02
Check signs in brackets and products
Check how signs work in examples such as +(−6) and (−4) × (−7).
03
Practise the rules over 10 questions
Repeatedly checking combinations of signs can help you calculate with more confidence.
SKILLS
Skills to practise
✓
Identify positive and negative values
✓
Read signs outside brackets
✓
Determine the sign of a product
✓
Anticipate the result before calculating
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