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Planning

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Make a worksheet8 question instances

Sample exercises

Grades 5–10 · Planning

A task starts at 09:20 and lasts 35 minutes. At what minute after 09:00 does it finish?

Answer and explanation

55 minutes

20+35=55, corresponding to 09:55.

Grades 5–10 · Planning

Two sequential tasks last 15 and 25 minutes. Find their total duration.

Answer and explanation

40 minutes

Sequential durations add.

Grades 5–10 · Planning

What is a task dependency?

  1. A decorative arrow only
  2. All tasks happen at once
  3. Every task has the same name
  4. A task must wait for specified earlier work
Answer and explanation

A task must wait for specified earlier work

Dependencies constrain order.

Grades 5–10 · Planning

Why might a small scheduling buffer be useful?

Answer and explanation

It allows for reasonable variation in travel, setup or earlier tasks so one delay does not automatically break the plan.

Credit uncertainty and propagation.

Grades 5–10 · Planning

An option costs 8 units plus 2 setup units. Another costs 11 including setup. Find the first option's total cost.

Answer and explanation

10 units

8+2=10 under the stated costs.

Grades 5–10 · Planning

When comparing two shopping plans with different pack sizes, which comparison is fairer?

  1. Use totals that include the same required components
  2. Ignore units
  3. Compare one subtotal with another full total
  4. Hide extra fees in the exercise
Answer and explanation

Use totals that include the same required components

Comparable scope avoids misleading choices.

Study notes