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5th grade · Math · Unit 9 of 14

Converting Units

Inches to feet, grams to kilograms

What your child practices

Converting between units in the US customary and metric systems (both ways, including decimals) and using conversions in multi-step problems.

Arizona Academic Standards learning standard: 5.MD.A.1 · converting between different-sized units within one measurement system and using conversions in multi-step problems

How we explain it

Children can open this short lesson before they practice.

  1. Big unit to small unit: multiply. Small unit to big unit: divide.
  2. Know the facts: 12 in = 1 ft, 16 oz = 1 lb, 4 qt = 1 gal, 100 cm = 1 m, 1000 g = 1 kg.
  3. Change to the same unit before you add or subtract.

Example: A rope is 4 yards long. How many feet is that? 1 yard = 3 feet. 4 × 3 = 12. Answer: 12 feet

Converting Units in Arizona

In the Arizona Academic Standards, this is unit 9 of 14 in 5th grade Math, after Parallel Lines and Quadrilaterals and before Parentheses & Expressions.

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: Arizona 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

    2000 meters is how many kilometers?

    • 2,000,000
    • 3
    • 2
    • 20
    • 5

  2. Question 2

    How many minutes are in 8 hours?

    • 4800
    • 600
    • 420
    • 480
    • 68

  3. Question 3

    3100 grams is how many kilograms?

    answer boxkilograms

  4. Question 4

    How many minutes is 4 hours 12 minutes?

    • 252
    • 312
    • 16
    • 52
    • 240

  5. Question 5

    A punch bowl holds 5 quarts. How many 1-cup servings is that?

    • 22
    • 20
    • 10
    • 40
    • 80

  6. Question 6

    How many milliliters are in 3 liters?

    answer boxmilliliters

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