Rounding/Estimation Word Problems

Next Test: FRIday 2/19 at 11:10

Standards Covered:

Solve two-step word 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.
Use place value understanding to round whole numbers to the nearest 10 or 100.

How to Study for this test:

Go to Edulastic and take the practice test. If you score 80% or better without any help, you probably don't need a lot of practice. If you get between 70% and 80%, you should practice a little. If you get below 70%, I want you to make sure you review everything below and watch the practice videos.
Make sure you know how to use your CUBES strategy.
Make a list of math action words (key words) to help you know which operation to use. You may use this list to help you on the test.
Watch the practice videos and practice some problems with Mrs. Choi.
After you practice, go back to Edulastic and take the test again to see if you have improved.

Make sure that you use your CUBES strategy to solve any word problem.

Math Action (Key) words

Get a piece of paper and divide it into 4 sections. Label each section with one of our operations (add, subtract, multiply, divide). As you watch the videos, write down the math action words they talk about in the correct sections. Save this chart to use as a tool for class and homework. On the back of your paper, write down the words that tell us when to round, and when not to round.

Addition and Subtraction

Multiplication and Division

Math Action Words that tell us to ROUND:

about

estimate

round

Math Action Words that tell us DON'T ROUND:

exact, exactly

precise, precisely

actual

Practice with Mrs. Choi

Use these videos to practice word problems with me. I will upload more videos, so check back!

Word Problem 1.webm

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