Customary Units of Weight
Customary units of weight is a Grade 5 math skill in enVision Mathematics, Chapter 12: Convert Measurements. The US customary system uses ounces, pounds, and tons: 1 pound = 16 ounces, and 1 ton = 2,000 pounds. Students learn to convert between these units by multiplying or dividing by the appropriate conversion factor.
Key Concepts
The customary system uses ounces, pounds, and tons to measure weight.
$$1 \text{ pound (lb)} = 16 \text{ ounces (oz)}$$ $$1 \text{ ton (T)} = 2,000 \text{ pounds (lb)}$$.
Common Questions
How many ounces are in 1 pound?
There are 16 ounces in 1 pound. To convert pounds to ounces, multiply by 16.
How many pounds are in 1 ton?
There are 2,000 pounds in 1 ton. To convert tons to pounds, multiply by 2,000.
How do you convert 3 pounds to ounces?
3 pounds x 16 = 48 ounces.
Where are customary weight units taught in enVision Grade 5?
Chapter 12: Convert Measurements in enVision Mathematics, Grade 5.
When would you use ounces vs pounds vs tons?
Ounces for light items like food portions, pounds for everyday objects like groceries, and tons for very heavy things like cars and trucks.