[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences by rounding decimals to whole numbers.

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...

Estimate sums and differences for positive proper fractions, n/d (numerator/denominator). Use rounding to estimate answers when adding or subtracting proper fractions.

[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.

[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences of fractions and mixed numbers

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

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

[Free Registration/Login may be required to access all resource tools.] Round fractions and mixed numbers in order to estimate sums and differences.

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...

[Free Registration/Login may be required to access all resource tools.] Estimate sums and differences of decimals using front-end estimation.

[Free Registration/Login may be required to access all resource tools.] Use front-end estimation to find decimal sums and differences.

In this activity, students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.

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...

[Free Registration/Login may be required to access all resource tools.] Identify when estimation is appropriate and estimate to solve word problems.

[Free Registration/Login may be required to access all resource tools.] Use number properties in decimal operations