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4th grade · Math · Unit 13 of 17

Feet, Pounds & Gallons

Convert units of measure

What your child practices

Knowing how US customary units compare (12 inches in a foot, 16 ounces in a pound, 4 quarts in a gallon) as well as metric and time units, and converting a larger unit to a smaller one.

New York State Learning Standards learning standard: NY-4.MD.1; NY-4.MD.2 · knowing feet and inches and other unit sizes, converting a larger unit to a smaller one, and solving measurement problems

How we explain it

Children can open this short lesson before they practice.

  1. 1 foot = 12 inches. 1 yard = 3 feet. 1 pound = 16 ounces.
  2. 1 gallon = 4 quarts. 1 quart = 2 pints. 1 pint = 2 cups.
  3. Big unit to small unit: multiply.

Example: How many ounces are in 3 pounds? 1 pound = 16 ounces. 3 × 16 = 48. Answer: 48 ounces

Feet, Pounds & Gallons in New York

In the New York State Learning Standards, this is unit 13 of 17 in 4th grade Math, after Prime & Composite and before Line Plots & Data.

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

    How many inches is 6 feet 11 inches?

    • 83
    • 95
    • 17
    • 72
    • 71

  2. Question 2

    Which is more: 5 pounds or 73 ounces?

    • 73 ounces
    • 5 pounds

  3. Question 3

    A cooler holds 2 gallons of lemonade. 2 quarts are poured out. How many quarts are left?

    • 6
    • 9
    • 4
    • 10
    • 0

  4. Question 4

    What number goes where the ? is?

    Pounds and ounces
    poundsounces
    348
    464
    580
    6?
    • 96
    • 144
    • 97
    • 22
    • 128

  5. Question 5

    How many pints are in 8 quarts?

    • 20
    • 160
    • 22
    • 16
    • 10

  6. Question 6

    Which holds the most?

    • 1 liter
    • 1 milliliter
    • 1 cup

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