5th grade · Math · Unit 9 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.
California Content Standards learning standard: 5.MD.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.
- Big unit to small unit: multiply. Small unit to big unit: divide.
- Know the facts: 12 in = 1 ft, 16 oz = 1 lb, 4 qt = 1 gal, 100 cm = 1 m, 1000 g = 1 kg.
- 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
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
A punch bowl holds 5 quarts. How many 1-cup servings is that?
- 22
- 10
- 40
- 80
- 20
20
Hint: 1 quart = 2 pints = 4 cups. 5 × 4.
Question 2
How many centimeters are in 1.3 meters?
answer boxcentimeters
130 centimeters
Hint: 1 meter = 100 centimeters. 1.3 × 100.
Question 3
How many inches is 5 feet 2 inches?
- 62
- 7
- 60
- 74
- 52
62
Hint: 5 × 12 = 60. Then add 2.
Question 4
How many milliliters are in 5 liters?
- 7000
- 5000
- 3000
- 50,000
- 1005
5000
Hint: 1 liter = 1000 milliliters. Multiply: 5 × 1000.
Question 5
10 cups is how many pints?
- 5
- 7
- 3
- 50
- 20
5
Hint: 2 cups make 1 pint. Divide: 10 ÷ 2.
Question 6
48 inches is how many feet?
- 40
- 3
- 576
- 6
- 4
4
Hint: 12 inches make 1 foot. Divide: 48 ÷ 12.