Estimating is an essential skill used in everyday life. This presentation explains how to apply prior knowledge about rounding numbers to estimating sums and differences. Example problems and assessment include large numbers, making this...

Expand on prior knowledge of place value to teach your class how to round whole numbers. This essential skill is explained with the help of a number line before introducing the explicit rules for rounding numbers up and down. Work...

Watch animated slides as RJ explains how to round numbers to the nearest ten and thousand. Viewers then get a chance to try it themselves.

Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between...

Five questions—multiple-choice, fill in the blank, and discussion—make up an interactive that challenges scholars to mail a teddy bear using the smallest box possible without squishing it. A box with movable sides allows mathematicians...

In this online interactive rounding numbers worksheet, students use their math skills to fill in the 21 blanks that require them to round to the tens, hundreds, and thousands.

For this idioms worksheet, students complete sentences by using idioms about numbers correctly and choosing the correct ending for each sentence.

For this estimation and rounding worksheet, students solve ten multiplication problems by using estimation and rounding skills. This is an interactive worksheet.

For this algebra worksheet, students estimate the square root. They rewrite the root as an exponential function and solve. They use the correct function notation. There are 10 questions.

In this estimation worksheet, 5th graders answer multiple choice questions about estimation of measurements, total numbers, and more. Students complete 10 multiple choice questions.

In this estimating and rounding worksheet, students complete a set of 10 multiple choice questions. Students may click on a link for answers or to print page.

In this estimation pre-test worksheet, students answer ten multiple choice estimation word problems. This is an interactive pre-test.

In this interactive grammar worksheet, students choose either the word "is" or "are" from the drop down menu to complete each of the ten given sentences.

In this immigration worksheet, learners read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write, and...

In this estimation worksheet, students complete multiple choice questions about rounding and the proper sequence of estimation. Students complete 10 questions total.

In this estimating before multiplying worksheet, students interactively answer 10 multiple choice questions about estimating, then click to check their answers.

Estimate numbers by rounding whole numbers and decimals.

This applet game for two allows you to practice estimating at several different levels of accuracy. You can choose whole number addition, multiplication, percentages or any combination of the three.

Practice rounding numbers to the nearest ten to estimate the sum.

Estimate the product by rounding to the nearest ten before multiplying.

Practice your arithmetic skills as you estimate the answer to questions involving addition, subtraction, multiplication, and division. Includes whole numbers, fractions, and percents. As you answer questions, you guide penguins across an...

Explore a set of perfect squares, as well as their square roots using this highly interactive math resource. In addition, students will get to look at estimates of the square roots of non-perfect squares. Printable activities, solutions,...

[Free Registration/Login Required] This fun decimal addition worksheet introduces students to the world of operations with decimal numbers. Fifth graders use models to visualize the addition of numbers in the tenths and hundredths places...

Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement.