Texas Education Agency
Texas Gateway:estimate and Find Solutions to Problems With Similarity and Rates
Given application problems involving similarity and rates, the student will estimate and determine the solutions to the problems.
Texas Education Agency
Texas Gateway: Estimating and Finding Solutions: Percents
Given problem situations involving percents, the student will estimate and find solutions to the problems.
Texas Instruments
Texas Instruments: Estimating With Rational Numbers
In this activity, students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.
PBS
Pbs Nova: Estimating Up, Up and How Far Away?
Use this cleaver site to estimate how far away a hot air balloon is from you using your thumb and arm length.
University of Georgia
University of Georgia: Texas Area Estimate
Drawings and discussion of several methods to estimate the area of an irregular shape, like the state of Texas.
Khan Academy
Khan Academy: Estimate to Add and Subtract Multi Digit Whole Numbers
Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Illustrative Mathematics
Illustrative Mathematics: 8.ns Estimating Square Roots
This task asks students to estimate the square root of 800 without using a calculator. To do it, they must examine perfect squares that are higher and lower than 800. Aligns with 8.NS.A.
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.
Shodor Education Foundation
Shodor Interactivate: Estimator Four
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.
AAA Math
Aaa Math: Estimating a Difference
This lesson explains how to estimate differences between whole numbers. Gives practice and games to practice this skill in a helpful and fun way.
AAA Math
Aaa Math: Estimating a Sum by Rounding
This site explains how to estimate sums of whole numbers. Gives practice and games to practice this skill.
McGraw Hill
Glencoe: Self Check Quizzes 1 Estimating Fraction Sums and Differences
Use Glencoe's randomly generated self-checking quiz to test your knowledge of estimating sums and differences. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
Math Playground
Math Playground: Estimate the Angle
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.
Shmoop University
Shmoop: Ratios & Percentages: Estimating Percentages
The mathematics tutorial examines how to estimate percentages using shortcuts. Students learn about the concept through notes, examples, and practice problems.
Khan Academy
Khan Academy: Estimating Mass
In this exercise, students practice estimating mass. Students receive immediate feedback and have the opportunity to get step-by-step hints and try questions repeatedly. CCSS.Math.Content.3.MD.A.2 Measure and estimate liquid volumes and...
Khan Academy
Khan Academy: Estimate Lengths
Sal estimates lengths using units of inches, feet, centimeters, and meters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Estimate and Compare Meters and Centimeters? (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This site offers four videos and a set of practice questions on estimating and comparing meters and centimeters using images and descriptions.
AAA Math
Aaa Math: Subtraction Using Estimation
This site explains how to estimate differences by rounding. Games and exercises are provided to practice the skill.
CK-12 Foundation
Ck 12: Elem Math: Estimating Measure by Description Multiple Choice
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must choose the best answers to questions about the estimated lengths of objects. Includes video demonstrating a sample problem...
Khan Academy
Khan Academy: Estimate Volume (Milliliters and Liters)
Practice estimating the volume of real life objects using milliliters and liters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
AAA Math
Aaa Math: Addition Using Estimation
This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.
Khan Academy
Khan Academy: Estimating With Dividing Decimals
Student practice estimating with dividing decimals.
CK-12 Foundation
Ck 12: Elem Math: Estimating Capacity Using Water Metric Units
[Free Registration/Login may be required to access all resource tools.] Students practice estimating capacity using metric units.
Sophia Learning
Sophia: Introduction to Estimating
A slideshow exploring the importance of using estimating in calculations in life situations and in physics. Understand how estimating in physics can help you see if your calculated answer is correct or not.