Curated OER
Multiplying and Dividing by 10
Once young mathematicians understand how easy it is to multiply and divide by 10, they'll be hooked! They complete four sections of 12 problems each, all involving this skill. First, scholars find the product of various whole numbers...
Curated OER
Multiply and Divide by 10
When you multiply a number by a 10 or 100, you simply move the decimal over by one or two spaces. Teach this trick to your class with this well-organized and straightforward resource. The concept is shown through several examples and...
Curated OER
Graphing Calculator Activity: Multiplying and Dividing Mixed Numbers
In this graphing calculator worksheet, students explore necessary steps to multiply and divide mixed numbers using a graphing calculator. In groups, students measure objects in their classroom and write equations using their collected...
Math Doctor
Chapter 5: Decimal Notation
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...
Curated OER
Multiplying and Dividing Decimals by 10. 100, and 1,000
Multiplying decimals by 10s, 100s, and 1,000s is easy once a student knows how to manipulate the decimal point. This short presentation covers this exact topic and does a good job of helping to show learners how easy it is to manage the...
Curated OER
Multiplying and Dividing Decimals
Learn to multiply with decimals. The class reviews multiplying multi-digit whole numbers based off of word problems. Then they learn how to multiply using decimals and practice with money problems.
Curated OER
Multiplying and Dividing by 10 and 100
Multiplying decimals is just like multiplying any number; you just need to remember the decimal point. Learners will see how decimal numbers move place value as they are multiplied by 10 or 100. This presentation also shows how decimal...
Curated OER
Using Known Facts to Multiply and Divide Mentally
Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...
Curated OER
Quick Quiz: Multiply and Divide with Fractions and Decimals
Here is a fraction and decimal activity in which learners solve eight problems that require them to multiply and divide using fractions and decimals.
Curated OER
Dividing Decimals by Whole Numbers
Dividing decimals is not hard, but one has to know how to manipulate the decimal point in order to achieve correct answers. In this math presentation, learners are taken through the process step-by-step in a clear and concise fashion....
Houghton Mifflin Harcourt
Counting the Zeros
This handout is a terrific teaching tool when covering the powers of ten and moving decimal points to multiply and divide large numbers. The first half of the assignment covers multiplication and then gives learners a try. The second...
EngageNY
The Division Algorithm—Converting Decimal Division into Whole Number Division Using Mental Math
Make math much simpler with mental math methods. The 16th installment in a series of 21 looks at ways scholars can apply mental math to convert division problems into easier problems with the same quotient. Multiplying or dividing both...
Illustrative Mathematics
Reasoning about Multiplication and Division and Place Value, Part 2
The learner puts reasoning and estimation to work. The directions are to place a decimal in the answer to make the equation true. Pupils are to look at the two problems, one multiplication and one division, and estimate an answer. No...
EngageNY
Grade 5 Math Module 1, Topic A, Lesson 2
What are the place value patterns? An informative lesson plan helps scholars build upon their knowledge of place value to see patterns when multiplying and dividing by powers of 10. Classmates begin the second installment by reviewing...
Curated OER
Powers of Ten
In this powers of ten worksheet, 5th graders multiply and divide decimals by multiples of ten. They mentally solve simple problems containing powers of ten. This two-page worksheet contains 10 problems.
Curated OER
Family Letter
Middle schoolers, working with their parents, calculate and complete five word problems associated with multiplying and dividing decimals. Students research the current Federal minimum wage at the library or on the Internet.
EngageNY
The Division Algorithm—Converting Decimal Division into Whole Number Division Using Fractions
Knowing the standard algorithm opens up a whole new world of division. Scholars learn how to convert division involving decimals to division involving whole numbers to use the standard algorithm. Knowing how to multiply with powers of...
Curated OER
Multiplying and Dividing
In this multiplying and dividing worksheet, middle schoolers compute the product and quotient of whole numbers and decimals. This two-page worksheet contains 4 multi-step problems.
Curated OER
Fractions Forever!
Middle schoolers identify proper, improper fractions, and mixed numbers. They reduce fractions to their lowest terms. They add and subtract fractions with different denominators, and multiply and divide fractions, as well as decimal...
Curated OER
Multiplying and Dividing in Scientific Notation
In this scientific notation worksheet, students are given examples of how to multiply and divide using scientific notation and they practice both.
Curated OER
Multiplying and Dividing Decimals
Division with decimals is explained using prior knowledge of powers of 10 and how to convert both sides of a division problem using this knowledge. The class works together through reading and setting up an equation for a word problem....
Curated OER
Repeating Decimal as Approximation
You are used to teaching repeating decimals with bar notation that keeps us from writing that number over and over again; now teach what the over and over again represents. This activity allows your mathematicians to explore the infinite...
EngageNY
Grade 5 Math Module 1, Topic F, Lesson 16
See, decimal operations do come in handy! Pupils solve word problems that require adding, subtracting, multiplying, and dividing decimals. They use tape diagrams to express relationships and to identify the necessary operations to solve...
Illustrative Mathematics
Converting Decimal Representations of Rational Numbers to Fraction Representations
A rational number is a ratio of two integers. Discuss with your class how to convert the rational numbers of repeating decimals to fractions. A good commentary on letting x equal the repeating decimal and multiplying each side of such...