Scholastic
Study Jams! Estimate Whole Numbers
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...
Scholastic
Study Jams! Estimate Sums & Differences of Whole Numbers
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...
CK-12 Foundation
Square Roots and Irrational Numbers: Estimating Radicals
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...
CK-12 Foundation
Tangent Line Approximation: Estimating Square Roots
Estimating a square root is as easy as evaluating a linear equation. Using the derivative of the square root function, pupils calculate an estimation of square roots. Class members determine the equation of the tangent line at the value...
Curated OER
Estimating and Rounding
In this estimation and rounding worksheet, students solve ten multiplication problems by using estimation and rounding skills. This is an interactive worksheet.
Curated OER
Rounding Numbers
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.
CK-12 Foundation
Area Sums: Estimation with Rectangles
The more rectangles, the better the estimate. Using the interactive, pupils explore estimating the area under a curve using left-hand sums. Learners respond to challenge questions on how to get better estimates using the same technique.
CK-12 Foundation
Length of a Plane Curve
Challenge your class to use straight lines when estimating the length of a curve. An engaging interactive allows individuals to place line segments one after another along the arc. Learners determine that the more lines used, the better...
Curated OER
Estimating the Square- Root of Ten
In 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.
Curated OER
Basics of Estimation
In this estimation worksheet, students complete multiple choice questions about rounding and the proper sequence of estimation. Students complete 10 questions total.
Calculator Soup
Calculator Soup: Estimating Sums and Differences of Fractions Calculator
Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.
Study Pad
Splash Learn: Add Decimals Using Models
[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...
Other
Explore Learning: Estimating Population Size
Adjust the number of fish in a lake to be tagged and the number of fish to be recaptured. Use the number of tagged fish in the catch to estimate the number of fish in the lake. (Free usage is limited to five minutes per day.)
University of Cambridge
University of Cambridge: Nrich: Games Estimating Angles
Use this game to improve your ability to create an angle with a specific number of degrees. You can set the angles to the size you want on this game. Just follow the instructions below it!
Shodor Education Foundation
Shodor Interactivate: Comparison Estimator
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.
Government of Alberta
Learn Alberta: Math Interactives: Exploring Square Roots (Object Interactive)
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,...
ABCya
Ab Cya: How Many Marbles?
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...