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5th grade · Math · Unit 12 of 15

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.

Texas Essential Knowledge and Skills (TEKS) teks student expectation: 5.7 · converting measurements within the customary or metric system

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 Texas

In the Texas Essential Knowledge and Skills (TEKS), this is unit 12 of 15 in 5th grade Math, after Parallel Lines and Quadrilaterals and before Coordinate Grid.

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: Texas Education Agency (TEA)

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 ribbon is 2 meters long. How many 20 cm pieces can be cut from it?

    • 13
    • 100
    • 10
    • 8
    • 40

  2. Question 2

    How many ounces is 2 pounds 12 ounces?

    • 32
    • 60
    • 47
    • 14
    • 44

  3. Question 3

    6000 meters is how many kilometers?

    • 6,000,000
    • 6
    • 8
    • 60
    • 9

  4. Question 4

    How many grams are in 6 kilograms?

    • 8000
    • 1006
    • 7000
    • 60,000
    • 6000

  5. Question 5

    How many grams are in 4.5 kilograms?

    answer boxgrams

  6. Question 6

    A rope is 6 yards long. It is cut into pieces 1 foot long. How many pieces?

    • 16
    • 6
    • 18
    • 216
    • 72

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