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Subtracting and with Counters
Using the two-color counter model, we can visualize subtracting integers when the starting collection has enough counters of the correct sign to naturally remove.
- To model , start with positive (blue) counters. Removing positive counters leaves exactly positive counters, confirming that .
- To model , start with negative (red) counters. Removing negative counters leaves exactly negative counters, confirming that . Both calculations demonstrate the straightforward take-away method that applies when the minuend and subtrahend are represented by the same color counters.
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Intermediate Algebra @ OpenStax
Ch.1 Foundations - Intermediate Algebra @ OpenStax
Algebra
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Subtracting and with Counters
Subtracting and with Counters
In a warehouse inventory training simulation, a trainee uses blue counters to represent surplus items and red counters to represent backordered items (deficits). To model the process of reducing a 3-unit backorder by 1 unit, which corresponds to the expression , what specific action should the trainee perform according to the counter model?
In a corporate logistics center, a 'Visual Inventory Board' uses blue counters to represent a surplus of items (positive) and red counters to represent backordered items (negative). Match each mathematical expression representing a change in inventory with the correct procedure required to model it using the two-color counter method.
In a warehouse inventory simulation, a supervisor uses red counters to represent a shortage of parts. To model the mathematical expression using this system, the supervisor starts with 3 red counters on the tracking board and must remove ____ (number) red counter(s) to find the remaining shortage.
A budget analyst uses a visual dashboard where red counters represent departmental deficits in thousands of dollars. To model the mathematical expression (representing the reduction of a 3-unit deficit by 1 unit), arrange the following steps in the correct order according to the counter model.
In a professional inventory training module where blue counters represent surplus stock, the mathematical expression is correctly modeled by starting with 3 blue counters and removing 1 blue counter from the display.
Learn After
In a workplace training workshop on visualizing basic accounting principles, your instructor uses a two-color counter model where blue counters represent positive balances (surplus) and red counters represent negative balances (deficits). To visually model the subtraction problem , you begin by placing 6 red counters on the table. Based on the straightforward take-away method, what is the precise next step to evaluate this expression?
In a workplace accounting simulation, you use a visual model where red counters represent negative balances (deficits). To model the expression using the 'take-away' method, arrange the following procedural steps in the correct order from start to finish.
In a corporate budget workshop, blue counters represent surplus funds and red counters represent deficit funds. Match each subtraction expression or result with its corresponding visual representation using the counter model.
In a corporate budget visualization exercise, red tokens are used to represent deficits (negative values). To model the expression using the take-away method, you start with 6 red tokens and remove 4 of them. After this action, the number of red tokens remaining in the collection is ____.
In a corporate financial literacy workshop using the two-color counter model (where blue tokens represent a surplus and red tokens represent a deficit), the subtraction expression is correctly modeled by starting with 6 red tokens and removing 4 of them.
Modeling Inventory Deficits with Counters