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Interactive
ABCya

Ab Cya: Estimating

For Students 3rd - 5th
Soccer Math: Estimating is a fun way for kids to practice estimating sums, differences, products and quotients. There are different levels of difficulty in each exercise making the game appropriate for a variety of students and grades....
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Unknown Type
McGraw Hill

Glencoe: Self Check Quizzes 1 Estimating Fraction Sums and Differences

For Students 3rd - 8th
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...
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Interactive
Quia

Ixl Learning: Estimate Sums With Numbers Up to 100,000

For Students 3rd - 5th
Practice rounding numbers to the nearest ten to estimate the sum.
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Whiteboard
ClassFlow

Class Flow: Estimating Sums and Differences

For Teachers 1st - 3rd Standards
[Free Registration/Login Required] This flipchart is designed to teach third grade students the steps in estimating sums and differences. It also reviews rounding numbers to the nearest ten and hundred.
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Whiteboard
ClassFlow

Class Flow: Estimating Sums and Differences Acti Vote

For Teachers 3rd - 5th
[Free Registration/Login Required] This flipchart is an Activote lesson for assessing students understanding of estimating sums and differences.
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Unit Plan
AAA Math

Aaa Math: Estimating a Sum

For Students 3rd - 5th
Students can practice estimating sums to the nearest thousand in a series of self-check exercises and timed learning games.
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Interactive
Calculator Soup

Calculator Soup: Estimating Sums and Differences of Fractions Calculator

For Students 9th - 10th
Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Rounding to Estimate Sums and Differences

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences by rounding decimals to whole numbers.
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Unit Plan
AAA Math

Aaa Math: Estimation

For Students 4th - 6th
Improve your estimation and rounding skills with these interactive games that are challenging and fun. Excellent skills practice for rounding, estimating sums and differences, and front-end estimation. Links to lesson plans, teacher...
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Unit Plan
AAA Math

Aaa Math: Front End Estimation of Sums

For Students 3rd - 5th
Students can practice estimating sums using front-end estimation in a series of self-check exercises and timed learning games.
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Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide Place Value, Rounding & Algorithms for Add'n and Subtr'n

For Students 4th Standards
A guide to support parents as they work with their students in place value, rounding, and algorithms for addition and subtraction.
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Activity
AAA Math

Aaa Math: Estimating a Sum by Rounding

For Students 3rd - 5th
Use rounding to estimate the answer to an addition problem in this online game. As you play the game, running totals of correct and incorrect answers and your score are displayed.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Estimating and Counting Money

For Teachers 3rd - 5th
The purpose of this lesson from the Illinois Institute of Technology is to review estimating and rounding to the nearest dollar as well as gain skills and practice in counting money. The learners will define the meaning of estimate and...
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Activity
Texas Instruments

Texas Instruments: Estimating With Rational Numbers

For Teachers 6th - 8th Standards
In this activity, students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.
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Handout
Fact Monster

Fact Monster: Rounding Numbers

For Students 1st - 4th Standards
The lesson explores how to round numbers. Explanations and examples are included in the tutorial.
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Interactive
Quia

Quia: Hangman Rounding

For Students 2nd - 4th Standards
Don't get "hung up" when you play this old game with a new twist. Simply, round each numbers to the nearest thousand then, find the sum or difference. Knowledge of place value units, where to put the comma, and good computation skills...
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation of Whole Number

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
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Activity
NumberNut

Number Nut: Estimate and Round Why Is This Important?

For Students 3rd - 7th
Problem solving will become a little easier when you understand the concepts of estimation and rounding. Explore how these concepts are used in mathematics and real world applications. Detailed examples and links to related games...
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Unit Plan
AAA Math

Aaa Math: Addition Using Estimation

For Students 5th - 7th
This site explains how to estimate sums by rounding whole numbers. Games and exercises are provided to practice the skill.
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Interactive
Study Pad

Splash Learn: Add Decimals Using Models

For Students 5th
[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...
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Activity
AAA Math

Aaa Math: Estimating a Sum by Rounding

For Students 3rd - 4th
This site explains how to estimate sums of whole numbers. Gives practice and games to practice this skill.
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Activity
Teaching Treasures Publications

Teaching Treasures: Year Six Math (Page 2)

For Students 3rd - 8th Standards
This interactive worksheet covers a wide range of math concepts such as Roman Numerals, distributive property, estimating sums, and comparing fractions and decimals. Some concepts may be slightly challenging. Learners can access the help...
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Handout
Khan Academy

Khan Academy: Probabilities in Genetics

For Students 9th - 10th Standards
Article reviews some probability basics then investigates how these calculations can be applied to genetics problems involving relatively large numbers of genes. Explores how the sum rule and the product rule can be used to solve these...
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Interactive
Quia

Quia: Math Journey

For Students 1st - 8th Standards
In this online game London is your starting place! This game lets you practice addition, subtraction, multiplication, division and rounding as you "Travel," around the world. You can also choose the level of difficulty

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