Curated OER
Mental Addition and Subtraction
Students play the online game ArithmAttack to practice mental math skills. They play the game to as many additions or subtractions as possible in sixty seconds. Afterward, they complete a paper based follow up exercise.
Curated OER
Addition and Subtraction
In this finding the sums and differences of horizontal problems worksheet, students add and subtract one-digit and two-digit numbers using mental math. Students solve 242 problems.
Curated OER
Sunshine Math- 3
In this math applications worksheet, students solve 8 varied problems that include basic operations, logic, fractions, mental math, area, and ordered pairs.
Curated OER
Sunshine Math-3
In this math applications worksheet, learners solve 8 varied problems including consumer math, fractions, ordered pairs, measurement and mental math.
Curated OER
Sunshine Math--3: Mars, II
Students practice solving mathematical word problems. In this math worksheet, they solve one probability problem, write in the missing numbers in a table, solve one mental math problem and interpret two graphs.
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Division: Facts Under Ten
In this finding the quotients worksheet, students use mental math to divide two-digits by one-digit with no remainders. Students solve 80 problems.
University of Waterloo
Rounding and Estimating 1: Introduction
Pupils practice mental math skills in math drills. They play the online interactive game "Rounding Off" to practice rounding off different numbers. Afterward, they complete a paper based follow up exercise for reinforcement.
Curated OER
Division Facts
In this finding the quotients worksheet, students use mental math to divide one-digit and two-digit numbers by one-digits with no remainders. Students solve 40 problems.
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Equivalent Fractions
Students practice determining equivalent fractions using mental math skills. They play the online game "Make a Match" to select equivalent fractions sets. Afterward, they complete paper based follow up exercises.
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Light and Our World
In this science worksheet, students solve a variety of curriculum related puzzles. They also practice basic mental math skills using four operations. The concept of light and color are explored and how it interacts with different objects.
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Multiplication: Mixed Facts
In this finding the products worksheet, students multiply one-digit numbers by one-digit numbers using mental math. Students solve 36 problems.
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Multiplication: Mixed Facts 2
In this finding the products worksheet, students multiply one-digit by one-digit numbers using mental math. Students solve 35 problems.
Curated OER
Sums
In this addition word problems worksheet, students read the problems, use mental math, and find the sums. Students solve five problems.
Curated OER
Adding Decimal Fractions Mentally
In this decimal addition worksheet, students solve 14 problems in which decimal numbers to the tenths or hundredths place are added. Problems are in horizontal format and students are encouraged to add mentally.
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Mental Arithmetic
In this math worksheet, students are read a series of questions. They answer them mentally. The questions and answers are on the worksheet.
Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
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Mental Multiplication
Learners discover how to multiply large numbers in their heads using some simple techniques. They understand that multiplying by 5 is done by multiplying by 10 and cutting the answer in half. They also understand that multiplying by 9...
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Using Math with Sale Papers
Fifth graders estimate their results and then prove through calculations. In this math lesson plan, 5th graders solve problems using multiplication, division, addition, and subtraction. They also use mental math to solve their problems.
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Multi-Digit Multiplication
Fourth graders practice mastering the ability to multiply multi-digit numbers utilizing rectangular arrays and a variety of mental math strategies. They model and illustrate meanings of multiplication and division of whole numbers and...
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Twenty-Five: A Math Card Game
Students calculate addition and subtraction problems using mental math. They add and subtract cards numbered one through nine until a player gets a sum of twenty-five.
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Multiplication Strategies and Writing Story Problems
Third graders model multiplication problems using Unifix cubes. They compute and solve problems involving addition and subtraction of 3- and 4- digit numbers and basic facts of multiplication and division. They practice mental math...
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Enjoying Millions- Working with Millions
In this working with millions activity, 4th graders look for patterns when working with millions, and use mental math to determine a number. They add and subtract numbers from a number in the millions before using a set of clues to...
Curated OER
Ways to Add
In this addition worksheet, learners learn several different options to add the numerals twenty-four and thirty. The options are models, mental math, a hundreds chart, or pencil and paper.
Curated OER
Multiply One-Digits
In this finding the products worksheet, students multiply one-digit times one-digit numbers to solve. Students solve 35 problems.
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