3.OA.8

3.OA.8

3.OA.8 Two-step word problems

Determine and justify solutions for two-step word problems using the four operations and write an equation with a letter standing for the unknown quantity. Determine reasonableness of answers using number sense, context, mental computation, and estimation strategies including rounding. (3.OA.8)

I can

I can use addition, subtraction, multiplication and division to solve all kinds of words problems and then use mental math to decide if my answers are reasonable.

Essential Question

What strategies can I use to solve two-step word problems? 

I Do

Multiple Choice

Demiro and Jatavious each have 7 trading cards. Ayden has 5 fewer cards than Demiro and Jatavious combined. How many trading cards does Ayden have?

• 2

• 5

• 9

• 10

We Do

Multiple Choice

At the town carnival Robert rode the ferris wheel five times and the bumper cars two times. If each ride cost eight tickets, how many tickets did he use?

• 56

• 40

• 10

• 63

You Do

Multiple Choice

Jakiyah had $50. Then she spent $5 each month for 4 months. At the end of 4 months, how much money did Jakiyah have?

• $20

• $30

• $45

• $59

Multiple Choice

Gabrielle sorted her marbles into 8 groups. She put 3 red marbles, 3 blue marbles, and 2 yellow marbles in each group. How many marbles did she have in all?

• 16

• 18

• 24

• 64

Exit Slip

Multiple Choice

Angel had 13 cookies. She gave 2 cookies to each of her 6 friends. How many cookies did she have left?

• 1

• 11

• 12

• 21