Meaning & use
number line
A straight line on which numbers are marked at equal intervals, used to show their order and value.
See it in a sentence
The teacher used a number line to show students how to add negative numbers.
Plotting the fractions on a number line made it easy to compare their sizes.
A note on using this word
A number line typically extends in both directions from zero, with positives to the right and negatives to the left.
Words with a similar meaning
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