Frost &
Flame

Practise integers and rational numbers with characters. Hot characters are +1, cold characters are −1. When one of each meet, they cancel out. Pick a ready-made set in the Character Studio, or draw your own characters.

+1flame
−1frost
0zero pair

Word bank

The maths words used in this game, in plain English. Don’t mix up sum and difference: they’re two different questions.

Integer
A whole number: positive, negative or zero
Positive integer
A whole number above zero
Negative integer
A whole number below zero
Zero (0)
Neither positive nor negative
Number line
A line where every number has its place
Absolute value
The distance from 0
Greater than (>)
Further to the right on the number line
Less than (<)
Further to the left on the number line
Addition
Putting numbers together
Subtraction
Taking a number away
Sum
The answer to an addition: add them both
Difference
The distance between two numbers