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PPT
Curated OER

Problem Solving

For Teachers 6th - 7th
Give kids a few strategies to help them become amazing problem solvers. This presentation is intended to be used over a two-day period and presents several techniques or ways to solve word problems or multiplication problems by...
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Worksheet
Curated OER

Mental Math Strategies

For Students 3rd - 4th
In this mental math worksheet, students study the detailed instructions and examples for adding or subtracting numbers using "breaking apart" or compensation. Students solve 17 mental math problems.
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Worksheet
Curated OER

Mental Math Strategies

For Students 4th - 5th
In this mental math learning exercise, learners read an information box that explains how to use breaking apart or compensation to solve addition or subtraction problems. Students add or subtract using mental math in 8 examples.
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Lesson Plan
BBC

Starship English and Math - Online Lesson Plans

For Teachers 1st - 2nd
Two online lessons, one in math and one in language arts, are here for you. In them, learners play online games which reinforce important skills in literacy and numeracy. The thing I like about both of these lessons is that they get the...
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Worksheet
Curated OER

Mentally Add Larger Numbers

For Students 3rd - 6th
In this addition activity, students solve problems in their heads. In this problem solving activity, students write answers to twenty problems.
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Lesson Plan
Curated OER

Mental Addition and Subtraction

For Teachers 5th
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.
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Worksheet
Curated OER

Choose the Operation: Plus or minus (up to 100)

For Students 2nd - 4th Standards
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
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Interactive
Curated OER

Explorit's Do-It-In-Your-Head Numbers Quiz

For Students 4th - 5th
In this mental math activity, students complete a 6 question multiple choice online interactive activity without using pencil, paper or calculator. Included are word problems, multiple operations, averaging, and basic arithmetic.
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Lesson Plan
Curated OER

Make a Ten

For Teachers 1st - 2nd
Youngsters mentally perform calculations involving addition and subtraction. They solve various addition and subtraction word problems using mental math and counters, write their own number stories, and solve various examples...
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Lesson Plan
Curated OER

Rice Cookies Addition

For Teachers 4th
Fourth graders practice adding rice cookies. In this mental math lesson, 4th graders get into groups and call out numbers to each other to add mentally. Students use the rice cookies to show the answer.
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Worksheet
Curated OER

Sunshine Math 3

For Students 4th - 6th
In this word problems worksheet, learners read and problem solve nine  mathematical word problems involving grids, measurement, compensation and angles.
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Activity
Illustrative Mathematics

Building toward fluency

For Teachers 2nd - 3rd Standards
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...
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Lesson Plan
Beacon Learning Center

Spotted Stones Linked Just Right

For Teachers 1st - 2nd Standards
Discover how to play the game of dominoes using mental math skills to solve equations that earn points. Pupils become fast critical thinkers in determining which unknown addend tally up points in their favor.
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PPT
Curated OER

Multiplying a Number by 10

For Teachers 2nd - 4th
A cheery presentation on multiplying whole, and decimal numbers by 10. Learners are coached to simply add a zero to the number which is being multiplied by 10. An excellent way to pass along one of the all-time best mental math tricks.
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Lesson Plan
Curated OER

Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping

For Teachers 2nd - 4th
Students explore adding 2-digit numbers. In this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
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Worksheet
Curated OER

More Addition in Your Head pg 1

For Students 4th - 5th
Addition using mental math is the focus of this math worksheet. Students solve two and three-digit number problems, and attempt to do so without the use of pencil and paper. Twenty problems are solved. Answers appear at the end of the...
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Worksheet
Curated OER

Doubles

For Students 1st - 2nd
These dragons work as math machines as scholars multiply numbers using given functions, which remain the same for these: double it. Using an example as their guide, learners double three whole numbers, none of which exceed 11, for each...
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Worksheet
Curated OER

Identify Patterns

For Students 3rd - 4th
To complete these number patterns mathematicians must determine by what number each is constantly increasing. However, this isn't your typical skip counting; scholars count by numbers like 18, 60, and even 101 to fill in the missing...
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Worksheet
Curated OER

Look for Easy Numbers for E-Z Addition

For Students 2nd
In this mental math worksheet, 2nd graders focus on using multiples of ten to make addition problems easier to solve. They look for numbers that add to 10, 20, 30, or other multiples of 10. They write about how finding the multiples of...
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Worksheet
Curated OER

Arithmetic: Fractions

For Students 7th - 10th
In this fraction worksheet, students add and subtract fractions with unlike denominators.  They multiply and divide fractions.  This one-page worksheet is designed for mental math.  It contains 30 problems, with answers.
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Worksheet
Scholastic

Week 19 Questions

For Students 3rd - 5th
Present your young mathematicians with a new challenge each day. Fractions on Monday, Tuesday is 2's Day, Wednesday is for squares, Thursday is 99 cents day, and by Friday it's time to deal with time. In addition, just for fun, there's a...
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Lesson Plan
Curated OER

Math: Mental Math

For Teachers 5th - 8th
Students investigate tips for calculating math problems mentally.
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Worksheet
abcteach

Simple Integer Addition

For Students 2nd - 4th Standards
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.
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Worksheet
Curated OER

Mental Arithmetic--Adding to Thousands

For Students 3rd - 4th
In this adding to thousands worksheet, students mentally add 12 problems as fast as they can without using paper and only writing down their answers. Students solve 3 additional addition problems and then explain what method they used to...

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