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...
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...
Savvas Learning
How Many Hundreds?
Mental math skills are really important to develop. Kids practice metal computation by first adding the hundreds then the tens and ones. There are nine addition and nine subtraction problems to solve. This attractive worksheet is...
Maths Blog
Adding/Subtracting Whole Numbers in Your Head
Exercise those mental math muscles! This worksheet contains 10 addition and 10 subtraction problems which require learners to compute sums or differences in their heads. A quick review at the top of the page provides a strategy based on...
Curated OER
Mental Math Methods
In this mental math worksheet, students use mental math methods to solve problems. Students complete 1 addition, 1 multiplication, and 1 subtraction problem using these methods.
Curated OER
Multiplying by 100
In this math instructional activity, students learn the tricks to multiply any number by 10, 100 or 1000. There are 75 problems on 3 pages, both written horizontally and vertically with instructions and picture illustrations to help...
Curated OER
Mental Math: Use the Properties-Reteach
In this mental math reteach learning exercise, students review the commutative, associative and distributive properties, then complete a set of 13 problems. A reference web site is given for additional activities.
Illustrative Mathematics
Building toward fluency
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Curated OER
Fun Figures
In this mental math worksheet, students solve 4 problems pertaining to scoring points in a target game. Students compute game scores mentally to answer each story problem.
Illustrative Mathematics
Finding a 10% increase
A quick problem to test your mathematicians' knowledge on percent increase. Two different solutions are provided, mental math and computing. Ask your learners to include a description of what they did to supplement their answer.
PBS
Working With Equivalent Fractions, Decimals and Percentages: Activities and Supplemental Materials
Reinforce math concepts using six worksheets that coincide with Virtual Math Girl's video instruction. The practice pages' objectives include writing equivalent fractions, decimal equivalents, and converting percents to decimals and...
Curated OER
A Shopping Spree!
In this adding prices of items worksheet, students choose items and add their totals using mental math, paper and pencil, and the calculator.
Curated OER
Formulae: Mental Tests
In this formulae worksheet, students find the value of a function, compute total cost, and simplify algebraic expressions. This four-page worksheet contains 30 problems.
Curated OER
Math Vocabulary
In this math vocabulary worksheet, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.
Curated OER
Fantastic Fractions
Young math whizzes solve 20 various types of equations related to fractions. First, they state each portion shaded as a fraction in lowest terms. Then, they determine the missing numerator or denominator and determine the value of each...
Curated OER
Reteach: Choosing the Method of Computation
In this computation methods activity, students read about reasons for choosing various methods, read a sample problem and reasoning, then solve 4 additional problems related to the sample problem. A reference web site is given for...
Achieve
Yogurt Packaging
Food companies understand how to use math to their advantage. Learners explore the math related to the packaging and serving size of yogurt. They then use unit analysis and percent values to make decisions on the product development.
Curated OER
Computing Discounts
In this computing discounts worksheet, students with a partner problem solve and calculate the answers to ten word problems and mathematical equations involving sales price, discounts, percents and decimals.
Curated OER
Math: O.R.E.O. Woes
In this math worksheet, 3rd graders apply basic operations to answer six questions about Oreo cookies. Next, they create four math problems using pictures and number sentences.
Curated OER
Think of a Number
In this math worksheet, students engage in a mental math activity. Student think a number and follow several computations with that number and always come up with the answer 9. Students discuss why this happens.
Curated OER
Mental Arithmetic Race
In this mental arithmetic race, students compute as many arithmetic problems as possible in a given length of time. Problems include whole and decimal numbers. Students mentally divide multiply, and add whole numbers and decimals. This...
Achieve
Fences
Pupils design a fence for a backyard pool. Scholars develop a fence design based on given constraints, determine the amount of material they need, and calculate the cost of the project.
Curated OER
The Number Tool Box
In this solving a math terms crossword puzzle worksheet, students read the clues across and down and write the math terms in the blanks. Students write 19 answers.
Curated OER
Top of the Heap
In this computation and mental math worksheet, students solve and complete 3 different types of problems. First, they color the animal on top yellow. Then, students color the animal in the middle brown. Finally, they color the animal on...