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A.1 Counting up to 1,000 with number lines

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What does it mean to count within 1,000?

Counting within 1,000 means being able to read, write, and count numbers from 0 up to 1,000 in order. A number line helps us see how numbers are arranged in sequence.

Examples:
  • Counting by ones: 198, 199, 200, 201
  • Counting by tens: 430, 440, 450, 460
  • Counting by hundreds: 300, 400, 500, 600
Note

When you count within 1,000, think about the pattern of ones, tens, and hundreds to help you keep track of where you are on the number line.

How to identify numbers on a number line

A number line is a straight line with numbers placed in order from left to right. Each point stands for a number.

Steps:
  • Find the starting number on the line.
  • Look at the spacing to see if it counts by 1s, 10s, or 100s.
  • Move step by step until you reach the number you are looking for.
Note

A number line is a tool that helps you see how numbers grow in order. Each jump is the same size, so the spacing shows the value of each step.

Examples of counting with number lines

You can use number lines to count forward or backward by ones, tens, or hundreds. This shows patterns in numbers and helps with adding and subtracting.

Examples:
  • Counting by tens: Start at 120, then 130, 140, 150, and so on.
  • Counting by hundreds: Start at 200, then 300, 400, 500.
  • Counting backward: From 250, count 240, 230, 220, 210.
Note

Use your number line to check your counting. If you skip a number or repeat a number, you can find and fix the mistake by looking at the line.

Helpful tips for counting within 1,000

Remember these strategies when you count within 1,000 using number lines:

Tips:
  • Break numbers into hundreds, tens, and ones.
  • Use skip counting (by 2s, 5s, 10s, or 100s) to move faster.
  • Check patterns: numbers ending in 0 when counting by tens, numbers ending in 00 when counting by hundreds.
Note

Counting within 1,000 helps prepare you for adding, subtracting, and solving word problems. Strong counting skills make math easier!