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6th grade · Math · Unit 16 of 21

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.

New York State Learning Standards learning standard: NY-6.RP.2; NY-6.RP.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 New York

In the New York State Learning Standards, this is unit 16 of 21 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: New York State Education Department (NYSED)

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

    A train travels 120 miles in 2 hours at a steady speed. How many miles per hour is that?

    • 70
    • 118
    • 60
    • 62
    • 65

  2. Question 2

    There are 12 inches in 1 foot. How many feet are 108 inches?

    • 6
    • 10
    • 18
    • 12
    • 9

  3. Question 3

    2 notebooks cost $2.50. What is the price of one notebook?

    • $0.50
    • $1.75
    • $1.25
    • $2.25
    • $1.50

  4. Question 4

    Which is the better buy for granola bars: 4 for $8.00 or 6 for $13.50?

    • 4 for $8.00
    • 6 for $13.50

  5. Question 5

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

    MinutesPages read
    212
    530
    636
    10?
    • 60
    • 78
    • 16
    • 61
    • 66

  6. Question 6

    Which is the better buy for granola bars: 4 for $8.00 or 6 for $13.50?

    • 6 for $13.50
    • 4 for $8.00

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