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Overview
CAEC Math
Number Sense
7. Rates; Ratios and Proportions: Practical Problem Solving
7.3 Operations with customary units
Operations with Customary Units
Practice adding, subtracting, multiplying, and dividing measurements given in feet, pounds, gallons, and other customary units.
What You'll Learn
Add measurements in customary units by adding like units separately, then regrouping when a smaller unit reaches its next whole unit.
Subtract customary units by borrowing from the larger unit when the smaller unit does not have enough to subtract.
Multiply a measurement by a whole number by multiplying each unit part, then regrouping the result.
Divide a measurement by converting fully into the smaller unit first, then dividing and converting back.
Recall key conversion facts such as 1 foot equals 12 inches, 1 pound equals 16 ounces, and 1 gallon equals 4 quarts.
Check answers by converting the final result into a single unit to confirm the total amount matches.
This Unit Includes
Learning resources
TEST-PREP Curriculum Aligned