Lesson 1.9 Problem Solving | Multiplication and Division

Lesson 1.9 Problem Solving | Multiplication and Division

You will solve division problem using the strategy solve a simpler problem.

Essential Question

How can you use the strategy solve a simplier problem to help you solve a division problem?

Unlock the Problem

• Mark works at an animal shelter. To feed 9 dogs, Mark empties eight 18-ounces cans of dog food into a large bowl. If he divides the food equally among the dogs, How many ounces of food will each dog get?

  
  

  Use the graphic Organizer below to help you solve the problem.

• What do I need to find?

• What information do I need to use?

• How will I use the information?

Fill in the Blanks

Mark works at an animal shelter. To feed 9 dogs, Mark empties eight 18-ounces cans of dog food into a large bowl. If he divides the food equally among the dogs, How many ounces of food will each dog get?

Use the graphic Organizer below to help you solve the problem.

Try Another Problem

• Michelle is building shelves for her room. She has a plank 137 inches long that she wants to cut into 7 shelves of equal length. The plank has jagged ends, so she will start by cutting 2 inches off each end. How long will each shelf be?

• What do I need to find?

• What information do I need to use?

• How will I use the information?

Fill in the Blanks

Michelle is building shelves for her room. She has a plank 137 inches long that she wants to cut into 7 shelves of equal length. The plank has jagged ends, so she will start by cutting 2 inches off each end. How long will each shelf be?

Fill in the Blanks

3. To make concrete mix, Monica pours 34 pounds of cement, 68 pounds of sand, 14 pounds of small pebbles, and 19 pounds of large pebbles into a large wheelbarrow. If she pours the mixture into 9 equal- size bags, how much will each bag weigh?

Fill in the Blanks

To make concrete mix, Monica pours 34 pounds of cement, 68 pounds of sand, 14 pounds of small pebbles, and 19 pounds of large pebbles into a large wheelbarrow. If she pours the mixture into 9 equal- size bags, how much will each bag weigh?

What if Monica pours the mixture into 5 equal size bags? How much will each bag weigh?

Fill in the Blanks

Taylor is building doghouses to sell. Each doghouse requires 3 full sheets of plywood which Taylor cuts into new shapes. The plywood is shipped in bundles of 14 full sheets. How many doghouses can Taylor make from 12 bundles of plywood?

Fill in the Blanks

Eileen is planting a garden. She has seeds for 60 tomato plants, 55 sweet corn plants, and 21 cucumber plants. She plants them in 8 rows, with the same number of plants in each row. How many seeds are planted in each row?