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Here is some fun practice for estimating:
estimate weight of some apples, then weigh on the scale.

# Visually Estimate Sums and Differences

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Basic Lesson
Demonstrates how to estimate sums and differences by comparing pictures. Also includes practice problems.
Standard: MATH 4
Grades: (K-2)
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Intermediate Lesson
Uses a larger picture sets than the basic lesson.
Standard: MATH 4
Grades: (K-2)
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Independent Practice 1
10 problems ask you to estimate the sums and differences of groups animals. The answers can be found below.
Standard: MATH 4
Grades: (K-2)
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Independent Practice 2
10 problems ask you to estimate the sums and differences of groups animals and dinosaurs. The answers can be found below.
Standard: MATH 4
Grades: (K-2)
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Visually Estimate Sums and Differences Homework
8 problems to reinforce the lessons and practice pages. An example is provided.
Standard: MATH 4
Grades: (K-2)
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Visually Estimate Sums and Differences Quiz
10 problems that test visual sums and differences estimation skills.
Standard: MATH 4
Grades: (K-2)
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Answer Keys
Answers for the homework and quiz.
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Answer Keys
Answers for both lessons and both practice sheets.
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Tips For Guessing How Many Jellybeans Are In A Jar
Learn how to make a good estimate of how many jellybeans are in jar.
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10 Ways We Use Math Everyday
Math is a part of our lives, whether we clean the house, make supper or mow the lawn.
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More Advanced Worksheets
The next level of math skills.
-Estimate Operations
-Estimate Large Operations
-Estimating Weight and Volume
-Rounding Numbers To Tens
Remedial Math Worksheets
Skills needed to get to this level.
-Estimating the Half Way Point
-Estimate on a Number Line
-Estimate the Objects
-Estimating Length