Grade 5 · The Numbers Year · Week 2

Two Kinds of Cost

Some costs happen once. Some happen again every single time you sell one.

This game goes with week 2 of the workbook. Do the page first; the game is for seeing the numbers move. Nothing you type is kept.

A sign costs $9.00 once, whatever happens. Each cup costs $0.40, every single time. Choose how many to make.

Make cups

Variable costFixed costTotalCost of one, fixed cost included
10 cups$4.00$9.00$13.00$1.30
never below $0.401255075100$9.40

The line is the cost of one, with the sign spread over however many you make. It never reaches $0.40, because the sign never goes away.

The workbook: The Numbers Year (free PDF). The teacher guide: answers and watch-fors.

Other weeks with a game: 4 Margin, 5 Break Even, 6 The Price Ladder, 9 Four Products, One Table, 22 Your Break-Even, In Units, 23 The Forecast, 24 The Business Plan, 33 Change One Thing, 35 Did It Work?. All games.