Application Magazine
Aplicaciones: Transformaciones
Find out how well you know the decimal system. Final score will be given in each section.
PBS
Pbs: Rounding to Wholes, Tenths, and Hundredths
On some nights only certain numbers can get in to the Number Line Party, what's a decimal to do? This interactive exercise combines activities here appear in two other Number-Line Party lessons and focuses on using what you know about...
Texas Instruments
Texas Instruments: Numb3 Rs: Onion Peeler
Based off of the hit television show NUMB3RS, this lesson introduces students to the concept of changing number bases, as well as gives some insight into Internet privacy through "onion routing." Students translate hexadecimal numbers...
CK-12 Foundation
Ck 12: Algebra: Scientific Notation
[Free Registration/Login may be required to access all resource tools.] Recognize the equivalence of decimal numbers in standard form, product form and scientific notation using very small and very large numbers
Math Is Fun
Math Is Fun: Compound Interest Calculator
A calculator based on the compound interest formula that can be used to determine the Present Value, the Future Value, the Interest Rate, or the Number of Periods. You can select the type of compounding, the effective annual rate, and...
Application Magazine
Aplicaciones: Examen De Decimals No. 1
Take this test to test your knowledge of: decimal place value, addition and subtraction of decimals. Final score will be given at the end.
Calculator Soup
Calculator Soup: Rounding Numbers Calculator
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.
Calculator Soup
Calculator Soup: Round to Nearest Multiple Calculator
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.
Homeschool Math
Homeschool Math: Multiply and Divide Decimals by 10, 100, and 1000
Lesson includes a video & examples showing the common shortcut for multiplying & dividing decimals by powers of ten. [7:59] Provides exercises and word problems for practice.
Khan Academy
Khan Academy: Naming and Ordering Numbers Lesson
Get ready for your Praxis Core Math test with this lesson over naming and ordering numbers. You will review the skills being tested for this topic and complete practice problems.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Really Big and Small Numbers
Find a quick, concise explanation of the names of large numbers all listed in a table. Other interesting tidbits of information about the names of larger numbers are also included. Names of decimals numbers are also included at the end...
CK-12 Foundation
Ck 12: Measurement: Metric Unit Length Conversions
[Free Registration/Login may be required to access all resource tools.] Convert metric units of length and round to a given place value.
Illustrative Mathematics
Illustrative Mathematics: 4.nf How Many Tenths and Hundredths?
Finish the equations to make true statements. The student must really think to encode the quantity in positional notation. Aligns with 4.NF.C.5.
AAA Math
Aaa Math: Subtracting Decimals
This personal site explains how to subtract decimals of the tenths place value. Includes games to practice this skill.
Calculator Soup
Calculator Soup: Percent to Fraction Calculator
This online calculator converts a percent to a fraction. If the percent value is greater than 100% it is converted into a mixed number fraction. Enter percents to convert them into fractions. The number you enter can also have decimal...
Khan Academy
Khan Academy: Practice: Decimals in Expanded Form
Questions are provided to review decimals in expanded form. Immediate feedback is given and hints or a video are available if needed.
Khan Academy
Khan Academy: Practice: Decimals in Expanded Form Review
Review how to write decimals in expanded form, then attempt some practice problems.
Study Ladder
Studyladder: Multiplying Decimals by 10
Studyladder:Multiplying decimals by 10 is an interactive learning activity.
CK-12 Foundation
Ck 12: Arithmetic: Numbers in Expanded Form
[Free Registration/Login may be required to access all resource tools.] Express decimals in expanded form.
CK-12 Foundation
Ck 12: Elem Math: Expressing Hundredths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing hundredths as decimals.
CK-12 Foundation
Ck 12: Elem Math: Expressing Tenths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview and attempt practice problems involving expressing tenths as decimals.
CK-12 Foundation
Ck 12: Elem Math: Expressing Thousandths as Decimals
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems involving expressing thousandths as decimals.
Khan Academy
Khan Academy: Multiplying and Dividing Decimals by 10
In this exercise, students practice multiplying and dividing decimals by 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Math Is Fun
Math Is Fun: E (Euler's Number)
Explains what Euler's Number is, its significance, and the formula used to calculate this irrational number. Gives memory tricks for remembering the value of e to 10 or 15 decimal places. Looks at some interesting properties of e and how...
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