11.7 Problem-Solving Investigation

Billy's picnic starts at 6:15 P.M. He needs to bake 3 dozen cookies. It takes 10 minutes to bake 1 dozen cookies. He will need another 20 minutes to get ready and 15 minutes to walk there. What is the latest time he can begin to prepare in order to be on time for the picnic?

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Tags

CCSS.3.MD.A.1

It took Liam 80 minutes to complete a jigsaw puzzle. He finished at 2:40 P.M. What time did he start?

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Tags

CCSS.3.MD.A.1

Solve by working backward.

Ava added an additional 35 mL of water to a vase. She then poured out 10 mL of water. Now she has 26 mL of water left in the vase. How much water was in the vase to begin with?

____ mL

Tags

CCSS.4.MD.A.2

Solve by working backward.

Kenya left home for her aunt's house at 8:15 A.M. She arrived at her aunt's house 2 hours 50 minutes later. What time did she arrive?

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Tags

CCSS.3.MD.A.1

Ciro played at the park with 5 friends for 30 minutes, 7 friends for 1 hour, and 2 friends for 15 minutes. He arrived at the park at 1:00 P.M. What time did he leave the park?

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Tags

CCSS.3.MD.A.1

Toya celebrated her birthday in March, 4 months after joining the swim team. Two months after joining the team, she swam in her first meet. What month did she swim in her first meet?

• January

• March

• May

• August

Tags

CCSS.3.MD.A.1

Work through this puzzle to find the number of minutes that it took Logan to clean his room.

Add 8 to a number. When you subtract 10 from the sum and double the difference, you get 44.

What is the number?

Tags

CCSS.7.EE.B.4A

Blaine built a cub staircase. How many more cubes does he need to build 6 steps?

___ more cubes

Tags

CCSS.4.MD.A.2

There are three children in line. Cami is right after Brock. Branden is third in line. What place is each child in line?

• 1. Cami

  2. Brock

  3. Branden

• 1. Brock

  2. Cami

  3. Branden

• 1. Branden

  2. Cami

  3. Brock

Flora, Alonso, and Luz went fishing.

Luz caught ____ fish.

Tags

CCSS.1.OA.A.1