Curated OER
Ways to Add
In this addition worksheet, students 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
Money Marvels
Second graders explore various combinations of coins and dollars that add up to make given totals. They complete five different studying stations, completing a worksheet at each center, and mentally perform calculations involving...
abcteach
Simple Integer Addition
Add to your collection of math resources with this skills practice worksheet. Offering dozens of addition problems with sums less than 100, this resource is a simple way to hone the basic skills of young mathematicians.
Curated OER
Multiply One-Digits
In this finding the products learning exercise, students multiply one-digit times one-digit numbers to solve. Students solve 35 problems.
Illustrative Mathematics
Using Benchmarks to Compare Fractions
Introduce a new strategy for comparing fractions by analyzing Melissa's use of benchmarks. Walk the class through her process, calling on learners to explain their understanding of each step she took. Then practice this method on two...
Math in English
Skip Counting
Help young mathematicians take the next step toward fluent addition with a simple skip counting exercise.
EngageNY
Overcoming a Second Obstacle in Factoring—What If There Is a Remainder?
Looking for an alternative approach to long division? Show your classes how to use factoring in place of long division. Increase their fluency with factoring at the same time!
Illustrative Mathematics
Double Plus One
Practice doubling with a straightforward worksheet. Learners double plus one each number in the table, and then answer a series of hypothetical math equations.
Coloring Squared
Thanksgiving Pilgrim—Holiday Subtraction
What's the mystery picture? Pupils solve the subtraction problems in each square. Then they use the key at the bottom to determine the color of the square.
Curated OER
Three Sets of Mental Math Problems covering Coordinates and Integer Values
In this mental math worksheet, students solve sixteen problems given in three sets. The problems are to be done without a calculator and they cover coordinates and integer values. The solutions are provided.
Curated OER
Liquid Killer
Students explore number sense applications and discuss strategies for multiplication and division using mental math. For cross-curricular purposes, they explore causes and effects of inequality and social injustice. Students explore...
Curated OER
Mental Methods
In this mental methods instructional activity, students determine the correct answer when multiplying fractions, percents and decimals. They use mental math to solve problems.
Curated OER
The Nuts and Bolts of a Mathematical Expression
Fourth graders complete a worksheet that asks them to order operations within a mathematical expression. students evaluate the expressions in the correct order using mental math and paper. The results are recorded on the worksheet.
Curated OER
Ten Pennies
Students play logic and strategy games with pennies. In this pennies worksheet, students play one game called 'From counting to arithmetic', and one called 'Counting and mental math'.
Curated OER
Computation and Estimation
Learners read "Moosey Saves Money" and use mental math to determine if Moosey is saving any money. In this math computation and estimation lesson, students discuss the story in relation to saving money, recording in their math journal....
Curated OER
Compare and Order Fractions
In this fraction instructional activity, students compare fractions using pictures and mental math, then order fractions from least to greatest and complete 2 test prep questions. Houghton Mifflin text is referenced.
Curated OER
Equal Groups
In this dividing by two word problem instructional activity, students use pictures and mental math to problem solve. Students solve six problems.
Curated OER
Representing the Unknown
Student use mental math to solve linear equations. For this algebra lesson, students solve one and two steps equations. They write expressions using variables to identify the unknown.
Curated OER
Counting on
For this addition worksheet, students use a number line or mental math to solve 20 sums. Example: "Gus Plus has 5 cubes. He collects 7 more. He now has ---." Students soon learn to hold the first number in their heads and count on.
Curated OER
Find the Missing Products
In this multiplication worksheet, students solve 40 problems in which two and three digit numbers are multiplied by single digits. Students are encouraged to use estimation to do mental math. This page is intended as an online activity,...
Curated OER
Addition and Subtraction as Inverse Operations
In this addition and subtraction worksheet, students work with the inverse operations. They fill in the boxes in 8 examples using mental math. They look at the addition problems and fill in the blanks in the subtraction problem and vice...
Curated OER
Addition
In this addition worksheet, students solve 20, 3-digit addition math problems mentally. Students put their answers down on paper, but do not work out the problems on paper.
Curated OER
Mental Division Year 4
In this finding the quotients in word problems learning exercise, learners divide two-digit and three-digit numbers by one-digit numbers and find the factors of numbers. Students solve 12 problems.
Curated OER
Division Problems to Calculate Mentally
In this division worksheet, students answer a set of 10 questions, trying to answer all questions "in their head." Answers are included on page 2.
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