Solutions should include solving construction-related

addition
subtraction
multiplication
division problems, using fractions.

Solutions should also include construction-related problems, involving one-, two-, and three-digit whole numbers, with and without a calculator, and problems involving decimals down to the thousandths, with and without a calculator.

Process/Skill Questions:

What are common tasks requiring the use of fractions in construction?
When is a common denominator needed?
Why should one be able to perform basic mathematical tasks without a calculator?
What are common situations in construction that require mathematics?
What is the base-10 system? What is its probable origin?