Multiplying Whole Numbers

Visual models support young mathematicians as they deepen their fractional number sense in this elementary math lesson. Using fraction circle manipulatives, children explore basic unit fractions as they develop the fundamental...

Understanding when to divide by two or one-half can be confusing. Here is an activity that gives four different scenarios. It is up to your number crunchers to decide if they divide by two or one-half. The easiest way to approach the...

In this math PowerPoint, the process of multiplying whole numbers and fractions is broken down into clear, sequential steps. Examples of each step are given numerically and in simple, easy-to-understand text. Story problems and examples...

This is the second in a series of 3 Khan Academy videos on rounding whole numbers. Students watch Sal Khan round the number 423,275 to the nearest thousand by looking to the number in the hundreds place. If it is 5 or higher, you round...

Rounding is an important skill which must be used throughout the study of mathematics. This Khan Academy video is the first in a series of 3. It shows how to round the number 24,259 to the nearest hundred, using a number line.

Adding double-digit numbers can seem difficult for some students. But, this Khan Academy video makes this process clear in a developmentally sound way. Students watch as 'Sal' adds the number 46 to 43. He references each number by its...

Whole numbers are the natural numbers including zero. The instructor illustrates and explains place value. She draws a place value chart and then defines each term and what the numbers mean. She writes a number in standard form and then...

A demonstration of how to multiply a whole number times a fraction.

Students explore whole numbers and decimals. In this decimal lesson, students discover how to perform multiplication with decimals as they complete a worksheet.

Subtracting three-digit whole numbers is as easy as following along with this video. You'll discover that you can borrow a ten from the tens column if you need to. Academic vocabulary is used throughout.