Practice your arithmetic skills as you estimate the answer to questions involving addition, subtraction, multiplication, and division. Includes whole numbers, fractions, and percents. As you answer questions, you guide penguins across an...

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

[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.] Approximate fractions and mixed numbers by using common benchmarks

[Free Registration/Login may be required to access all resource tools.] Round given mixed numbers to the nearest whole number.

[Free Registration/Login may be required to access all resource tools.] Add and subtract decimals with and without rounding

The lesson explores how to round numbers. Explanations and examples are included in the tutorial.

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...

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