Curated OER
Computers Can Only Add
Students explore using mathematics to solve problems in base two. After a teacher demonstration of using base two to write numbers. students model similar problems to explore the concept of number systems in different bases. To increase...
Helping with Math
Decimals: Thousandths
Nine fractions and mixed numbers are provided for your class to write as decimals. All have denominators of 1000. Then, nine decimal numbers, all thousandths, are provided for learners to write as fractions or mixed numbers. If you use...
Curated OER
Pythagorean Theorem
Students solve right triangles using the Pythagorean Theorem. In this solving right triangles using the Pythagorean Theorem lesson, students find the missing side of a right triangle. Students find the hypotenuse given two...
Curated OER
Cube Combinations
Second graders, given 5 number cubes, roll the cubes and record the data.
Curated OER
Understanding Place Value
In this understanding place value worksheet, students, with a partner, problem solve and calculate the answers to seven place value exercises.
Curated OER
Writing Numbers in Word Form
Students write numbers in word form. In this writing numbers in word form lesson, students are shown examples of numbers written out in word form. Then they independently complete a 20-problem worksheet.
Pennsylvania Department of Education
Seeing Doubles
Pupils work with dominoes to recognize the number of spots on each side as they relate to addition facts. In this seeing doubles lesson, students make triangle shaped flash cards for the double facts. Pupils represent the correct...
CK-12 Foundation
Ck 12: Elem Math: Representing Numbers in Expanded Form I
[Free Registration/Login may be required to access all resource tools.] The interactive PLIX tool allows students to drag and drop base blocks (1, 10, 100) to find the total area of an irregular figure. The video shows an example of a...
AAA Math
Aaa Math: Place Values by Adding: Expanded Form
Students can practice converting whole numbers from expanded form to standard form in a series of self-check exercises and timed learning games.
Khan Academy
Khan Academy: Write Whole Numbers in Expanded Form
Practice reading and writing numbers written in expanded form. Example: The expanded form of 376 is 300 + 70 + 6. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Numbers in Expanded Form
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to identify a missing term in a number represented in expanded form. Includes video demonstrating a sample problem [1:18]...
Quia
Ixl Learning: Writing Numbers in Expanded Form
Brush up on your math skills relating to writing numbers in expanded form then try some practice problems to test your understanding.
CK-12 Foundation
Ck 12: Elem Math: Completing the Expanded Forms of Numbers
[Free Registration/Login may be required to access all resource tools.] The video describes how to break down a number into expanded form using place value. The video is followed by practice problems to assess student understanding of...
CK-12 Foundation
Ck 12: Elem Math: Completing Expanded Forms Using Numbers and Words
[Free Registration/Login may be required to access all resource tools.] The video shows how to complete a number in expanded form using place value. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Expanded Form Involving Words
[Free Registration/Login may be required to access all resource tools.] For this learning module, students must apply their understanding of place value to identify which digit in a number represents thousands, ten thousands, etc....
Math Drills
Math Drills: Number Sense Worksheets
Download these free worksheets to sharpen your number sense skills. Sheets focus on roman numerals, scientific notation, counting, expanded form, exponents, factoring, roots, and rounding.
Khan Academy
Khan Academy: Decimals in Expanded Form
Practice converting decimals between standard form and expanded form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Calculator Soup
Calculator Soup: Expanded Form and Word Form Calculator
Expanded form calculator shows expanded forms of a number including expanded notation form, expanded factor form, expanded exponential form and word form.
AAA Math
Aaa Math: Place Values: Expanded Form
This site explains how to write whole numbers in expanded form. It provides games and exercises to practice the skill.
CK-12 Foundation
Ck 12: Elem Math: Representing Numbers in Expanded Form Ii (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This learning module features an interactive, a video, and a practice quiz in which students identify the ones, tens, or hundreds digit of a value by counting the...
Math Drills
Math Drills: Decimals Worksheets
Download these worksheets to sharpen your skills working with decimals. Sheets focus on rounding decimals, expanded form, comparing decimals, converting decimals, adding, subtracting, multiplying, and dividing decimals, and order of...
CK-12 Foundation
Ck 12: Elem Math: Completing Expanded Forms of Numbers (Place Values to 1,000)
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are given the expanded form of a number up to 1,000 and must use their understanding of place value to fill in missing numbers....
E-learning for Kids
E Learning for Kids: Math: Ice Cream Shop: Four Digit Numbers
On this interactive site students learn to place numbers in ascending and descending order, write 4-digit numbers in expanded notation and discuss place value.
E-learning for Kids
E Learning for Kids: Math: Eiffel Tower: Roman Numerals and Angles
Students will play learning games to explore expanded notation and angles such as identifying, measuring, and estimating. They will also convert Roman numerals into numbers.