Multiplying Decimals Teacher Resources

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Solve this algebraic equation in one step by using the multiplication property of equality. Not sure what that property is? Then watch this video and see the instructor work out this problem. These are decimal numbers so make sure to use the rules that apply to multiplying decimal numbers.
Base ten blocks are great tools for developing not only an understanding of whole numbers, but of decimals as well. This upper-elementary activity uses these versatile manipulatives and the array model to teach young mathematicians how to multiply and divide decimals. Consider breaking this activity up across multiple days, ensuring learners have sufficient time to practice and become comfortable with multiplication before moving onto division. To maximize student success, use base-ten blocks when teaching addition and subtraction of decimals, familiarizing the class with this approach to modeling decimals before introducing the operations of multiplication and division.
Multiply two mixed fractions. First, change them to improper fractions. Now, multiply the numerator times the numerator and the denominator times the denominator. Oh, that's a big number. Reduce it. Now, change it back into a mixed number. Done. Still confused? Follow along as the instructor illustrates the steps to this problem.
There are two percentage concepts covered in this video. The first is how to find a given percent of a given number; What is 15% of 40? The second concept shows learners how to find a number when the percent is given; - 3 is 9% of what? Sal finishes by demonstrating how to convert percentages to decimal numbers in order to solve the problems.
Mathematicians need to know that not all numbers are rational. We approximate irrational number with rational numbers. That is why a calculator may be misleading. This task give learners an opportunity to see how rounding a number and then multiplying it is not the same as multiplying a number and rounding it. 
This is a good Common Core question that relates inflation to operations with decimals and rounding. Young learners are asked to find out if an amount of money can purchase the same amount of movie tickets in 2012 as it did in 1987. They then must decide how much more money is needed to purchase the same amount of items. Can be used as a class activity or as an independent assignment. 
Kids love to cook! What is a better place to learn mixed numbers than with a recipe? It is up to learners to decide how they want to divide this recipe in half. They may choose to model the mixed number and then divide the model by two. Maybe it is easier for them to graph on a number line and then mark the half-way point. Or a straight computation of multiplying by one half could be their choice. Any way your number crunchers dice it up, they need to use critical thinking in order to complete this exercise.
Learners multiply decimals and/or mixed numbers. They explore the effects of multiplying decimals and mixed numbers. They practice estimating answers when a number is multiplied by a decimal or mixed number.
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.
In this teacher's guide to the multiplying and dividing fractions instructional activity, students learn that fractions are converted to decimals on a calculator. Students have guided practice multiplying a fraction by a whole number; multiplying a fraction by a fraction; and dividing fractions and mixed numbers, all on a calculator.
In this misconceptions about multiplying decimals worksheet, learners read several problems, and common misconceptions about the solutions, then read corrected solutions and complete follow-up exercises.
In this decimal multiplication worksheet, students read about the concept, then solve a set of 14 problem, multiplying one decimal number by another.
In this decimal multiplication worksheet, students review methods to multiply decimals. Students then practice by putting the decimal point in the correct place for the multiplication problems.
In this whole number and decimal multiplication worksheet, students review the three steps to multiply whole numbers and decimals. Students then find the products for the sixteen problems.
Help your learners get practice with operations involving decimals. They will follow prescribed steps that require them to use mixed operations to solve problems with decimals. Great for practice after pupils have had comprehensive instruction regarding this concept.
For this multiplication of decimals worksheet, students complete a set of 12 problems, multiplying decimal numbers by single digits. Answers are included on page 2.
In this decimal multiplication worksheet, students multiply the given decimals. Students also solve 6 equations by replacing the variable with a value from the box. Students then compare the decimal equations by writing a greater than, less than or equal to sign. Students finish with two test prep questions.
Fifth graders order decimals from least to greatest and greatest to least. In this decimal order lesson, 5th graders complete an online review of comparing 2 digit numbers. Students then complete a decimal order card game in groups. Students then complete a craft activity for decimal ordering.
Students work with decimals. In this decimal lesson, students participate in a hands-on group activity that enable them to review to how to appropriately add and subtract decimals.
In this multiplication of decimals worksheet, students begin by reviewing whole number multiplication skills. They multiply whole numbers by decimals. One problem asks students to determine the decimal placement when numbers with like digits, but different decimal values are presented. The final set of problems are word problems that students solve by multiplying decimals.

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Multiplying Decimals