This interactive lesson focuses on using what you know about number lines and rounding from the tenths place to make decimals whole numbers and then asks you to explain your reasoning to show comprehension.

This resource has three problem sets to practice rounding whole numbers to 10's, 100's and so on, place. Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all...

Practice estimating the equation of a line of best fit through data points in a scatter plot. Then use the equation to make a prediction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...

Rounding calculator teaches how to round numbers up or down to any decimal place. Choose ones to round a number to the nearest dollar. Choose hundredths to round an amount to the nearest cent.

Estimate the product by rounding to the nearest ten before multiplying.

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...

In this week's Afterschool Adventure, children will explore simple math activities using the numbers one through ten. Children will represent numbers in different ways, such as drawing quantities; writing numerals; and using number...

Explains how to round to a given number of "significant digits".

Reviews how to round numbers to a given place or number of decimal places.

In this interactive, practice estimating size and quantity to send 100 chickens into space.

Use this NOVA instructional activity to discuss the nature of time and the grandfather paradox. Examine time from different perspectives by plotting ages on a timeline, estimating how long a minute is and imagining going back in time to...

Use this rounding calculator to round a number to the nearest multiple. You can round a number up or down to the nearest 2, 4, 5, 10, 50, etc. You can also round to the nearest tenth, hundredth, thousandth, etc. multiple in a decimal place.

Second graders will be able to estimate the lengths of objects by mentally partitioning the lengths into inches. A video, worksheets, and a detailed lesson plan are included.

More challenging practice problems where you round whole numbers to the nearest hundred or thousand Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

College professor Dan Bach offers a review of various basic topics in arithmetic, pre-algebra, and algebra. Order of operations, exponents, square roots, variables, and combining terms are just a few of the many topics covered.

Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.

This lesson plan helps students explore the mathematical concept of area and features resource links to further learning. CCSS.Math.Content.3.MD.C.7.a Find the area of a rectangle with whole-number side lengths by tiling it

Drawings and discussion of several methods to estimate the area of an irregular shape, like the state of Texas.

Estimate the size of a large population (fish in a bay) by applying the concepts of ratio and proportion through the capture-recapture statistical procedure.

Lesson plan which details how to have young scholars determine the distance to an object by sighting it from two different locations and knowing the distance between these locations. As an advanced alternative, trigonometry can be used...

What have young scholars learned about college? What questions do they still have? Students work on wrapping up and reflecting on the College Project while tackling math problems. This instructional activity includes a detailed plan,...

You can understand the concepts of decimals in a clear way with the help of this article. Included are solved examples and interactive questions for review.

Learn about integers with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.