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Find the Distance Between Two Decimals

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A Peek Beyond the Point · Decimals on number lines · 3:19

You'll learn: The distance between two decimals is their difference, found on the number line.

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Find the Distance Between Two Decimals

3:19

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Find the Distance Between Two Decimals

You'll learn: The distance between two decimals is their difference, found on the number line.

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Same topic

Decimals on number lines

2

Zoom into a Number Line to Locate a Decimal
3:17
Zoom into a Number Line to Locate a Decimal
You'll learn: Zoom into an interval of the number line again and again to locate a decimal precisely.
Can You Always Find a Decimal Closer to a Target?
3:24
Can You Always Find a Decimal Closer to a Target?
You'll learn: Between any two decimals there is always another, so we can get as close to a target as we like.

Next topic

Decimal addition and subtraction

3

Regroup to Add and Subtract Decimals
3:15
Regroup to Add and Subtract Decimals
You'll learn: Line up places and regroup across the point to add and subtract decimals.
Find the Next Terms in a Decimal Sequence
3:17
Find the Next Terms in a Decimal Sequence
You'll learn: Find the constant change in a decimal sequence to continue it.
Estimate a Decimal Sum or Difference Before Calculating
3:20
Estimate a Decimal Sum or Difference Before Calculating
You'll learn: Round to whole numbers first to estimate a decimal sum or difference.

Next topic

Misleading decimal notation

2

Spot Decimal-Point and Unit Errors
3:24
Spot Decimal-Point and Unit Errors
You'll learn: A misplaced point or a mixed unit changes a value by a factor of ten or more; check both.
Why 1.5 Hours, 5.6 Feet and 4.3 Overs Can Mislead
3:19
Why 1.5 Hours, 5.6 Feet and 4.3 Overs Can Mislead
You'll learn: Clock time, feet and inches, and cricket overs group by 60, 12 and 6, not 10, so writing them with a dot like a decimal misleads.

Next topic

Simple fractions as decimals

2

Write Halves, Quarters and Fifths as Decimals
3:19
Write Halves, Quarters and Fifths as Decimals
You'll learn: Rewrite halves, quarters and fifths with denominators 10 or 100 to get their decimals.
Separate a Decimal's Whole and Fractional Parts
3:29
Separate a Decimal's Whole and Fractional Parts
You'll learn: Every decimal has a whole part and a fractional part separated by the point.

Next topic

Letters representing numbers

2

How Can a Letter Stand for a Changing or Unknown Number?
3:04
How Can a Letter Stand for a Changing or Unknown Number?
You'll learn: A letter can stand for a quantity that changes or for one we don't know yet.
Describe a Number Relationship with Letters
3:10
Describe a Number Relationship with Letters
You'll learn: Translate a number relationship described in words into an expression with letters.

Next topic

Formulas from quantities

3

Write a Formula for a Total Cost
3:09
Write a Formula for a Total Cost
You'll learn: Write a formula for total cost as price times quantity.
Express an Age Relationship with a Letter
3:04
Express an Age Relationship with a Letter
You'll learn: Write one person's age in terms of another's using a letter.
Write Perimeter Formulas for Regular Shapes
3:09
Write Perimeter Formulas for Regular Shapes
You'll learn: The perimeter of a regular shape is the number of sides times the side length.

Next topic

Calendar and number-grid relationships

1

Write Relative Values in a Calendar or Number Grid
3:03
Write Relative Values in a Calendar or Number Grid
You'll learn: Write every cell of a calendar or grid block relative to one cell, using row and column rules.