Q1
What happens to numbers as we move right on a number line?
AThey increase
BThey decrease
CThey stay the same
DThey disappear
ICSEClass 6 (ICSE)MathematicsCh 7 · Topic 1
Number Line
A number line is a straight line showing numbers in order, helping us visualise, compare, and perform operations with numbers.
Core concept
On a number line, numbers increase as we move right and decrease as we move left, with zero often in the middle.
How it works
A number line can show whole numbers, integers, or even fractions and decimals between whole numbers.
Why it matters
We can use a number line to add or subtract by moving right (for addition) or left (for subtraction).
Key detail
Number lines help us visually compare numbers and understand concepts like greater than, less than, and equal to.
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Quick notes
• A number line shows numbers in order.
• Numbers increase moving right.
• Numbers decrease moving left.
• Zero is often in the middle.
• Number lines can show integers, fractions or decimals.
• Moving right on a number line means addition.
• Moving left means subtraction.
• Number lines help compare numbers visually.