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6th grade · Math · Unit 16 of 17

Unit Rates

Price per item, miles per hour

What your child practices

Finding unit rates and unit prices, choosing the better buy, completing rate tables, and converting measurement units with ratios.

Maine Learning Results learning standard: 6.RP.A.2; 6.RP.A.3 · finding unit rates, using rate tables, and converting measurement units with ratio reasoning

How we explain it

Children can open this short lesson before they practice.

  1. A unit rate is the amount for 1.
  2. Divide the total by the number of units.
  3. Compare unit prices to find the better buy.

Example: 4 notebooks cost $6.00. What is the price of one? $6.00 ÷ 4 = $1.50. Answer: $1.50

Unit Rates in Maine

In the Maine Learning Results, this is unit 16 of 17 in 6th grade Math, after Four Quadrants and before Nets & Surface Area.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Maine Department of Education

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    7 notebooks cost $7.00. What is the price of one notebook?

    • $1.25
    • $2.00
    • $0.50
    • $0.25
    • $1.00

  2. Question 2

    Which is the better buy for granola bars: 2 for $4.00 or 5 for $12.50?

    • 5 for $12.50
    • 2 for $4.00

  3. Question 3

    A train travels 50 miles in 2 hours at a steady speed. How many miles per hour is that?

    • 25
    • 15
    • 27
    • 48
    • 40

  4. Question 4

    The table shows a constant rate. What number goes where the ? is?

    GallonsMiles
    318
    424
    530
    7?
    • 48
    • 24
    • 43
    • 13
    • 42

  5. Question 5

    There are 12 inches in 1 foot. How many feet are 72 inches?

    • 12
    • 6
    • 9
    • 7
    • 5

  6. Question 6

    A cyclist rides 150 kilometers in 6 hours at a steady speed. How many kilometers per hour is that?

    • 30
    • 25
    • 144
    • 20
    • 31

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