Elementary Test Prep Math 4 (Grade 3) Trial and Error

Analyze Problems
Lesson
Topic Index | Grade 3 Math | Elementary Test Prep | StudyZone

When solving problems, look for a relationship between the units you are using.

Problem:
Abby is making lemonade. She needs to add 1 quart of water. She is using a one-cup measuring cup. How many cups of water will she need?

Solution:
Since she is using a one-cup measuring cup, Abby needs to find the number of cups in 1 quart. She knows that:
            2 cups = 1 pint
            2 pints = 1 quart
     So, 4 cups = 1 quart

Problem:
Ben has some quarters saved in a jar. He wants to buy a book that costs $5.00 at the school's book fair. How many quarters will he need to buy the book.

Solution:
Ben needs to determine the number of quarters in $5.00. He knows that:
4 quarters = $1.00
4 x 5 = 20 quarters

     So, Ben needs
            20 quarters
            to buy the book.

Problem:
Liz is baking cookies. They need to bake for ¼ hour. How many minutes must they bake?

Solution:

Liz knows that :

1 hour = 60 minutes
¼ of 60 = 15 minutes

So, she will bake the
cookies for 15 minutes.

Remember:

Look closely at a problem to solve.

Click on the chalk board for practice.

Topic Index | Grade 3 Math | Elementary Test Prep | StudyZone