Curated OER
Estimating Products
Multiplication on the fly becomes easy with the magic of estimating! Scholars round numbers up to four digits to complete multiplication problems without a calculator. They write in the new factors and the approximate product for the...
Curated OER
Study Buddies- Estimating Products
In this math worksheet, students work with a partner to practice estimating products using rounding. They discuss the process of rounding and whether multiplying the rounded numbers is easier or more difficult than multiplying the...
Baylor College
Food: The Math Link
Enrich your study of food science with with these math worksheets. They offer a variety of food-related word problems that are great practice for multiplying, identifying fractions, estimating length, and performing calculations with...
Mathed Up!
Estimation
Reinforce estimation and the four operations—addition, subtraction, multiplication, and division—with eight page, 15 problem independent practice exercise.
Prince Edward Island
Fact Learning, Mental Computation, Estimation
Need help with mental math in your classroom? This guide is full of tips, tricks, and examples to help the teacher encourage learners to use their brain instead of a calculator. Practice problems are included with reasons how to use...
Houghton Mifflin Harcourt
Unit 2 Math Vocabulary Cards (Grade 4)
The 28-page resource contains cards with terms relating to multiplication from inverse operations to front-end estimation to array. Each sheet contains two cards; one with the word and one with the definition.
DataWorks
4th Grade Math: Multi-Step Word Problems
Solving word problems requires reading comprehension and math computation. Through an interactive slideshow presentation, fourth graders observe and follow each step toward solve multiplication and division word problems.
CK-12 Foundation
Estimation of Whole Number Multiplication and Division: Lettuce Garden
Estimating whole number multiplication and division is the focus of an interactive that uses a garden plot with moveable points to answer six questions.
Curated OER
Estimating Products: Which is Closer?
In this estimating products instructional activity, 4th graders are given a target number in ten problems, they first estimate which of two equations will yield a product closer to but less than the other, then they multiply both equations.
Curated OER
Estimate Products
In this estimating products worksheet, students interpret data on the yearly diets of the average American, then solve 6 word problems where they must estimate products by rounding the larger factor to its greatest place value.
DK Publishing
Estimating
Through estimating, scholars are able to make these word problems simpler as they multiply to find approximate answers. Using an example as guidance, they solve five scenarios, each of which has space for learners to show their work. The...
Virginia Department of Education
Modeling Division of Fractions
Provide a meaningful context for learning about the division of fractions with this upper-elementary math lesson. Presented with a simple, real-world problem, young mathematicians work in small groups to develop visual models that help...
Curated OER
Growing Caterpillars
Explore multiplication through caterpillar study. Learners will view a caterpillar video clip and work with a group to determine how much they would weigh if they grew to be 3,000 times their size as does the caterpillar. They will...
Federal Reserve Bank
Sky Boys: How They Built the Empire State Building
How tall is the Empire State Building? Lead your class through a collaborative estimation activity to determine the number of quarters it would take to reach the top and teach the following concepts: human capital, human resources,...
Curated OER
Decimal Word Problems
In this problem solving learning exercise, students use their knowledge of decimals, estimation, multiplication, and division to solve story problems. Students solve eight problems.
Curated OER
Estimate Products: Reteach
In this estimating products worksheet, students review two steps to help estimate products. Students then estimate the products by rounding the factor greater than 10 to its greatest place.
Curated OER
Calculator
In this mathematical calculations activity, 4th graders complete 12 multiplication problems by using a calculator. Students also develop an estimate for these problems.
Curated OER
New York State Math Test Grade 4
In this New York State math test learning exercise, 4th graders complete multiple choice questions on money, multiplication, estimation, and more. Students complete 30 problems.
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
ExplorA-Pond: 4th Grade Perimeter Estimation
Your geometers are used to finding the perimeter of a square or rectangle, so give them something different this time! With this lesson, small groups will receive a picture of a shoreline and calculate the perimeter. The website listed...
Delaware Math Cadre Elementary Committee
Operations and Algebraic Thinking
How to use the relationship between multiplication and division to solve math word problems is the focus of the lesson presented here. In it, fourth graders work in groups to solve problems posed by the teacher. Then, each group is given...
AGradeMath.com
Working With the 10,000 Chart
Calculate the answers to problems that are multiples of ten to help your class discern patterns in the zeros and learn to sequence. Each person receives a 10,000 chart, but s/he must discover that on their own through estimation and...
Curated OER
Error of Estimation
In this finding the error of estimation worksheet, students estimate products, calculate products, and find the differences. Students solve eight problems.
Curated OER
Estimation Investigation
Young scholars view an interactive video to explore the concepts of estimation. They work cooperatively to measure, make comparisons, make predictions, and verify results.