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Number line to 100 and 1000 | Year 3 Mathematics PDF Download

Understanding Number Lines

  • Number lines serve as valuable tools for comparing numbers, understanding place value, and estimating numerical positions.
  • They provide a visual representation that helps in ordering numbers efficiently.
  • For Example: This number line shows you numbers increasing in hundreds to 1000.
    Number line to 100 and 1000 | Year 3 MathematicsBy looking at the number line, you can see the distance between 100 and 1000.

Solved Examples

Example 1: Where would you estimate 690 to be on this number line?
Number line to 100 and 1000 | Year 3 MathematicsSol: The intervals on the number line increase by hundreds.
690 will be positioned between 600 and 700.
690 is nearer to 700 than to 600. It is also beyond the halfway mark between these numbers.
The arrow would be placed very close to 700, like this:
Number line to 100 and 1000 | Year 3 Mathematics

Example 2: What number is being shown on the number line to 100?
Number line to 100 and 1000 | Year 3 MathematicsSol: Step 1: Determine what each interval represents.
The difference between 50 and 100 is 50. You can verify this:
100 - 50 = 50
Next, count the number of intervals. There are 10 in total.
How many 10s fit into 50? 5.
Therefore, each interval increases by 5.
Step 2: Count the number of intervals.
Count the intervals, starting at 50. There are 7 intervals.
Since each interval represents 5, the calculation we need is:
7 x 5 = 35
Now we can find the answer. The number line starts at 50:
50 + 35 = 85
We can double-check by counting 7 intervals from 50 on the number line. The arrow lands on 85.

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