Curriculum placement

Grade 3. This describes the skill, not a learner estimate.

Multi-operation word problems

Solve two-step stories and assess reasonableness

Problem types

  • Choose the equation for a two-step story
  • Choose or reject the model for a story
  • Combine deliveries and use some
  • Find change after equal purchases
  • Choose the operations for adding and removing
  • Select the expressions or sentences that fit a story
  • Which story or equation fits the strip diagram?

Builds on

Leads to

  • Multi-step word problems
  • Profit, cost, and taxes · See it applied

    Buying, selling and paying costs are several operations in order, and the result is profit or what is left.

  • Solving one-step equations · See it applied

    Writing $x + 6 = 21$ from a story is the same modeling step that comes before solving a one-operation equation with a letter.

  • Expressions with variables · See it applied

    A story with a quantity that changes needs a way to name that quantity. A letter stands for the changing amount, which is what a variable is.

  • Linear models of a situation · See it applied

    A story with a starting amount and a repeated change is a linear model: start plus rate times number of steps.

Related skills

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