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...
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...
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
Reteach: Choosing the Method of Computation
In this computation methods worksheet, 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...
Curated OER
Computing Discounts
In this computing discounts worksheet, learners 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
Mental Math: Use the Properties-Reteach
In this mental math reteach worksheet, students review the commutative, associative and distributive properties, then complete a set of 13 problems. A reference web site is given for additional activities.
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
Multiplying by 100
In this math worksheet, learners 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 students.
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.
Curated OER
Unit 22: Volume
For this volume worksheet, learners determine the volume of cubes, prisms, and assorted shapes. This three-page worksheet is designed for mental computation. Answers are provided beside each question. This three-page...
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...
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
Think of a Number
In this math learning exercise, 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.
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.
Curated OER
What is Less 1-10
For this group counting worksheet, students count each group and cross out items to make less. Students work towards counting backwards as a strategy to mentally compute "less."
Curated OER
A Shopping Spree!
In this adding prices of items worksheet, learners choose items and add their totals using mental math, paper and pencil, and the calculator.
Curated OER
Areas and Perimeters
For this area and perimeters worksheet, students compute the area and perimeter of rectangles and squares. This two-page worksheet contains approximately 30 mental problems. Answers are provided beside each question.
Curated OER
Time and Timetables
For this time and timetables worksheet, students draw hands on a clock-face to show a determined time. They look at a timetable and compute the length of a journey. This four-page worksheet contains approximately 25 problems.
Curated OER
Unit 6 Arithmetic: Multiplication of Decimals
In this multiplication of decimals activity, students complete 6 sets of problems. The first two sets of ten problems involve whole number computation. The final four sets involve decimal multiplication. There are a total of 59...
Curated OER
Arithmetic: Decimals, Fractions and Percentages
In this arithmetic worksheet, students convert fractions to decimals and percents. This two-page worksheet contains 30 problems. Many of the problems can be computed mentally. Answers are provided.
Curated OER
Top of the Heap
For 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...
Noyce Foundation
Toy Trains
Scholars identify and continue the numerical pattern for the number of wheels on a train. Using the established pattern and its inverse, they determine whether a number of wheels is possible. Pupils finish...