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...

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

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...

In this estimating volume worksheet, students complete a set of 10 multiple choice questions, clicking on an answer link to view correct answers. Page is labeled as a "post test."

In this algebra learning exercise, 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.

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

Estimate numbers by rounding whole numbers and decimals.

Practice estimating the angle by sliding the blue "X" button up and down to open and close the angle. See how many aliens you can zap with the correct answer. Your total correct out of 10 is listed just below the problem.

This activity allows the user to compare to quantities by estimating. Students use three types of estimations: counting, length, and area. An interactive activity and teacher resources are included.

Estimate the sum and difference by rounding whole numbers and decimals.

[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...

Help Pet and Cat fill the bathtub with water by picking a container and pouring water into the tub. You will have to estimate how many containers it will take to fill the tub with water and then see if you are correct.

How Many Marbles is a fun 3D activity for children to practice estimating. Rotate the jar to see the number of marbles from different sides. Estimate the number of marbles by using the arrow keys to answer. How close can you get? This...