QR 101 · Course unit
Percentages: repair a budget decision
Compare discounted cost and simple interest.
Practice in MathBeasts (opens the existing external demo in a new tab)
Opens the existing MathBeasts demo in a new tab. Launched separately — activity there is not synced back and never affects sample progress or grades here.
- 01 Course challenge
- 02 Diagnostic
- 03 Targeted repair
- 04 Mastery & return
Order of operations repair bench
Calculate parentheses, powers, multiplication/division, then addition/subtraction.
Worked example
3 + 2 × (5 − 1) = 3 + 2 × 4 = 11.
Two correct guided practice answers unlock two new transfer checks.
Unit prerequisite tools
Percentages
required
Not tested yet
Order of operations
diagnostic-recommended
Not tested yet
Fractions
on-demand
Available whenever needed