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6.09 Multi-step story problems

Lesson

Are you ready?

We have learned to write a number problem from a story problem with multiplication or division already.

There are $8$8 rows of trees in a field, with $3$3 trees in each row.

  1. Write a number sentence for this story problem.

  2. How many trees are there in the field?

Lesson

What happens if our story has more than one part to it? Let's see how to turn that into a number problem with multiplication and division.

Apply

There are $2$2 flower beds in Sarah's backyard.

Each flower bed has $3$3 strawberry plants.

  1. How many strawberry plants are there in total?

  2. If each plant has $4$4 fruit growing on it, how many strawberries are there in total?

Remember!

We can use pictures, numbers or symbols for our problems, so it helps to know how to use each method.

Outcomes

3.OA.D.8

Solve two-step contextual problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding (See Table 1 - Addition and Subtraction Situations and Table 2 - Multiplication and Division Situations).

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