Illustrative Mathematics
To Multiply or not to multiply?
When do you multiply a fraction by a fraction? Here, fifth graders are given 10 different word problems and asked to decide if multiplying 2/5 x 1/8 is appropriate. Many times, real-world word problems sound similar although the required...
Curated OER
Problem Solvers
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
Curated OER
Fractions and Rationals
Upper elementary and middle schoolers solve 16 types of problems to include writing fractions to represent shaded portions, writing a mixed number to represent certain points on a number line, and changing equivalent mixed numbers to...
Curated OER
Division of Decimals
Work with the class to investigate the concept of dividing decimals. They will use a variety of problem-solving skills in order to practice the operation of division. The teacher can use the dialogue to guide learners through the various...
Curated OER
Dividing Whole Numbers with Long Division
Learners use long division to divide numbers. They practice long division by filling in the proper numbers in blank boxes for the quotients and they complete long division problems.
Curated OER
Multiplying Decimals and Mixed Numbers
Students practice multiplying decimals and/or mixed numbers, explore the effects of multiplying decimals and mixed numbers, and practice predicting the effects of multiplying a number by a decimal or mixed number.
Curated OER
Harry's Job at a Candy Store
Teach the class how to multiply fractions by a whole number with a Cyberchase video and real-world problems. This lesson includes a video, a worksheet and assessment options.
Curated OER
Multiplying Fractions Times Whole Numbers
Multiplying fractions by whole numbers is the focus of the math lesson presented here. There are three activities outlined in the lesson along with a nifty game learners play on the computer that reinforces their learning. These lessons...
Illustrative Mathematics
How Many Servings of Oatmeal?
Here is another way to illustrate division of a whole number by a unit fraction. In this case, the problem is asking if there are so many servings per cup, how many servings are in a package of multiple cups. Learners are to model their...
Curated OER
Learning to Multiply
Learning how to multiply is the focus of this math resource. The first of five pages reviews the multiplication process as repeated addition. The second provides a few examples that you might consider working through with the class. An...
Curated OER
Comparing a Number and a Product
Mental math strategies are important for fifth graders to be able to determine the greater sum without actually solving the equations. As a summative assessment, this eight-problem worksheet can give insight into the understanding of the...
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...
Ohio Department of Education
Multiplying and Dividing in Scientific Notation - Grade 8
Here is really nice set of resources on scientific notation. Eighth and ninth graders explore the concept of multiplying and dividing in scientific notation. In this multiplying and dividing numbers in scientific notation lesson,...
DK Publishing
Multiply or Divide? Choosing the Operation
Division or multiplication? Scholars examine 36 number sentences, each missing either a division or multiplication symbol...but which one fits? They write in the signs based on the numbers given, all of which are whole numbers. The first...
Gecko Mathematics
Gecko Mathematics: Multiplying Unit Fractions
Make learning visible! Have your mathematicians follow along as you use paper strips to demonstrate the concept of multiplying unit fractions. Then, offer a different way of solving the problem using a number line. Finally, introduce the...
Fraction Bars
Solving Word Problems - Whole Numbers Times Fractions
An impressive instructional activity where pupils visualize models and solve problems involving multiplying a whole number times a fraction. Fraction bars are used to help learners truly understand what's happening during this...
DK Publishing
Multiplying and Dividing by 10 and 100
Challenge your third and fourth graders with a math worksheet about the multiples of 10 and 100! Youngsters solve four sections of problems, all involving multiplying and dividing by 10 and 100. Great practice before getting into larger...
Curated OER
Practice the 7s
Get those mental mathletes thinking on their toes! Can they recall multiples of seven in these timed exercises? Scholars who have already learned multiples of seven get some timed practice as they finish this 60-problem set. They...
Curated OER
Napier's Rods
Young mathematicians explore the concept of multiplication using Napier's Rods. They use Popsicle sticks to create a 3D model of Napier's Rods. Pupils multiply multiple digit numbers using Napier's Rods.
Curated OER
The Multiplier (small 2-digit by 1-digit numbers)
Second graders study digits in 2- or 3-digit whole numbers. They write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division.
Math Drills
Multiply Fractions by Whole Numbers (A)
First in a series of similar worksheets, learners practice multiplying whole numbers with fractions. The denominators do not exceed the number 15, and the answers to most of the 10 problems can be simplified. Give this assignment when...
Curated OER
Multiplying By Powers of Ten (A)
In this multiplying by powers worksheet, students multiply whole numbers by a power of ten. This four page worksheet contains approximately 40 problems, with answers on a separate page.
Scholastic
Study Jams! Multiplication of Decimals
How do you handle a decimal point when it appears in a multiplication problem? The answer is explained with a captivating and interactive slide show.
Curated OER
Multiplication & Division by 2-digit Whole Number (2.3)
In this multiplication and division worksheet, students multiply and divide by two-digit whole numbers to find the products and quotients. Students solve thirteen number problems and word problems.