Unit Plan
Ck 12: Arithmetic: Estimation to Check Decimal Division Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation to Check Decimal Division

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Estimate and confirm decimal quotients by dividing leading digits
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Unit Plan
Ck 12: Arithmetic: Quotient Estimation With Mixed Numbers/fractions Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Quotient Estimation With Mixed Numbers/fractions

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students estimate quotients of fractions and mixed numbers using benchmarks and rounding. Students examine guided notes, review guided practice, watch...
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Unit Plan
Ck 12: Arithmetic: Estimation of Whole Number 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 and find compatible whole numbers in order to estimate products and quotients.
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Handout
The Math Forum: Ask Dr. Math: Estimating Quotients Handout
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Estimating Quotients

For Students 4th - 7th
This is a question about the best way to estimate the answer to a division problem. The answer offers a basic definition of estimation, along with several methods and the positive and negative aspects of each.
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Activity
K 5 Math Teaching Resources: Estimate the Quotient [Pdf] Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Estimate the Quotient [Pdf]

For Students 3rd - 5th
This activitiy asks students to randomly select a one-digit divisor and a three-digit dividend and estimate the quotient mentally. Students must then explain why they believe their estimate is accurate.
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