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Master BEDMAS: Applying the Four Basic Operations in Math

CA.3.MD.5

Area - unit squares and pattern blocks

Area by Unit Squares

Square measure

Converting Square Units

Calculate the Square Area

CA.3.MD.6

Calculating and Estimating Area and Perimeter

CA.3.MD.8

Perimeter: Grid squares and polygons

Perimeter of Polygons

Perimeter Equation of Polygons

CA.3.NBT.1

Estimating decimals

Rounding Decimals

Place Value Tables of Multi-Digits

Place Value Tables — Multi-Digit

Identifying the Place Value of a Digit

Place Value of a Digit — Multi-Digits

Expanded Form of Multi-Digits

Place Values in Expanded Form — Up to 10K

Place Values in Expanded Form — Up to 999

Converting Between Place Values of Multi-Digits

Conversions To and From — Up to 9999

Reading and Writing Digits

Reading and Writing Digits — Up to 20

Reading and Writing Digits — Up to 99

Comparing Values of Multi-Digits

Place Value Comparing Numbers — Up to 999

Regrouping Place Values of Multi-Digits

Place Values Regrouping — Up to 999

CA.3.NBT.2

Adding with Digits Up to 1000

Add By Digits — Up to 1000

Simplifying Addition by Separating

Addition by Separation — Up to 1000

Addition by Separation — Up to 999

Addition with Regrouping Up to 1000

Add By Regrouping — Up to 1000

Addition Tables Up to 1000

Add By Number Table — Up to 1000

Subtracting with Digits Up to 1000

Subtract By Digits — Up to 1000

Subtraction with Regrouping Up to 1000

Subtract with Regrouping — Up to 1000

CA.3.NF.3

Equivalent fractions

Equivalent Fractions

CA.3.OA.1

Multiplying Digits with 5 and 10 Up to 999

Multiplication by Five or Ten — Up to 100

Multiplying Digits with 0 and 1 Up to 999

Multiplication by One or Zero — Up to 999

Using Models to Multiply Up to 999

Multiplication by Models — Up to 3 Digits

Multiplying using Mental Strategies

Split into Smaller Calculations Strategy — Up to 999

Repeated Addition As Multiplication Up to 999

Multiplication by Repeated Addition — Up to 999

CA.3.OA.2

Sharing & Grouping Up to 999

Sharing and Partitioning — Up to 3 Digits

Dividing with Arrays

Dividing with Arrays — Up to 100

Remainders from Division Up to 999

Sharing and Remainders — Up to 3 Digits

Dividing with Digits Up to 999

Division By Digits — Up to 3 Digits

Understanding the Division Sign Up to 999

Division Language — Divided By

Division Language — Sharing

CA.3.OA.3

Multiplication Word Problems Up to 999

multiplication word problems up to 999

Division Word Problems Up to 999

Division Word Problems — Up to 3 Digits

CA.3.OA.4

Identifying the Missing Digits (Addition)

Fill in the Blank — Up to 1000

Identifying the Missing Digits (Subtraction)

Multiplication Tables Up to 999

Multiplication Tables — Up to 100

Multiplication Tables — Up to 200

Division Tables Up to 999

Division Tables — Up to 100

Division Tables — Up to 200

CA.3.OA.5

Square Numbers

Square numbers — Up to 100

Relating Multiplication with Division Up to 999

Relating Multiplication with Division

CA.3.OA.6

Relating Addition with Division

CA.3.OA.7

Times Tables

Multiplication Times Table — Up to 2 Digits

Multiplying with Digits Up to 999

Multiplication by Digits — Up to 3 Digits

CA.3.OA.8

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Applications of the four operations (BEDMAS without exponents)

Combining Multiplication and Addition

Applying BEDMAS Without Exponents

Addition Word Problems Up to 1000

Addition Word Problems — Up to 1000

Addition Word Problems — Up to 200

Subtraction Word Problems Up to 1000

Subtraction Word Problems — Up to 1000

Multiplying with 3 Numbers Or More

Multiplication of Three or More Numbers

3rd Grade Math

math

Intro

In this lesson, we will learn:
<ul type = "disc">
<li>How to solve equations with multiple different operations in them</li>
<li>How to follow the proper order of operations using BEDMAS (or PEMDAS)</li>
</ul>

 Notes: 
<ul type = "disc">
<li>Order of operations tells us the rules for which math operations to do first, second, third&hellip; </li>
<ul type = "circle">
<li>The 4 basic operations are: addition (+), subtraction (-), multiplication (&times;), and division (&divide;)</li>
</ul>

 <li>We CANNOT do operations in any order we want because it will lead to different answers.</li>
<ul type = "circle">
<li>Mathematicians have agreed on the order so that everyone does all the operations in the same order to get the same answer (only one correct answer).</li>
</ul>

 <li>To remember the order, we can use the acronym BEDMAS</li>
</ul>

<center><img src="https://dmn92m25mtw4z.cloudfront.net/img_set/math4-4-2-x-1/v1/math4-4-2-x-1-849w.jpg" width="500" alt="Applications of the Four Operations (BEDMAS without exponents)"> </center>

<ul type = "circle">
<ul type = "circle">
<li>Alternatively, some textbooks also use the acronym PEMDAS instead</li>
<li>P in PEMDAS stands for parentheses; M and D still stand for Division and Multiplication, but they&apos;ve switched places from BEDMAS</li>
</ul></ul>

<ul type = "disc">
 <li>If there are more than one of each type of operation, they can all be done in the same step, from left to right, before moving onto the next step.</li>
</ul>

<center><img src="https://dmn92m25mtw4z.cloudfront.net/img_set/math4-4-2-x-2/v1/math4-4-2-x-2-1376w.jpg" width="600" alt="Applications of the Four Operations (BEDMAS without exponents)"> </center>

<ul type = "disc">
 <li>The steps for Order of Operations (without exponents) is:</li>
</ul>

<center><img src="https://dmn92m25mtw4z.cloudfront.net/img_set/math4-4-2-x-3/v1/math4-4-2-x-3-788w.jpg" width="370" alt="Applications of the Four Operations (BEDMAS without exponents)"> </center>

Applications of the four operations