# Order of Operations WorksheetsFree Printable Worksheets

Welcome to free printable Order of Operations Worksheets with exponents and parentheses at A-Z Worksheets that teach the right order in which to figure a string of operations.

Exponents come second in the order of operations for Pre-Algebra. Use this phrase to remember the order: "Please excuse my dear Aunt Sara." or use the phrase PEMDAS. We also have thousands of other Math worksheets and coloring pages to print. Scroll down our long pages real fast to see how many printable Math sheets we have! No registration necessary.

A-Z Worksheets free printable Math sheets are basic Math help. Our order of Operations Worksheets are just the beginning, yet knowing the information on them well makes using higher Math concepts so much easier. Memorize the PEMDAS line. Parenthesis, exponents, multiplication, division, addition, and subtraction; but remember that in the real world multiplication and division are of equal priority as are addition and subtraction. The phrase "Please excuse my dear Aunt Sara." works well with guided problem solving and you must use that formula if your Math textbooks use it because you'll get a wrong answer if you don't. Memorization makes Math easier, so memorize that operations of equal priority should be worked left to right - usually. See what we found at Wikipedia below.

All my Algebraic life I've wondered what Wikipedia answers well:

"From the earliest use of mathematical notation multiplication took precedence over addition, whichever side of a number it appeared. Thus 3 + 4 × 5 = 4 × 5 + 3 = 23. When exponents were first introduced, in the 16th and 17th centuries, exponents took precedence over both addition and multiplication, and could be placed only as a superscript to the right of their base. Thus 3 + 5 2 = 28 and 3 × 5 2 = 75. To change the order of operations, originally a vinculum (an overline or underline) was used. Today we use parentheses. Thus, to force addition to precede multiplication, write (2 + 3) × 4 = 20."

Wikipedia points out that multiplication and division are of equal importance so that they can trade places. The same is true of addition and subtraction.

" These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would give the wrong answer to many equations."

10 - 3 + 2 figured left to right is 9

If you figured the addition first the answer is 5. The order of operations really matters.

Further…

The order of operations, or precedence, used in mathematics and many programming languages is expressed here:
terms inside parentheses or brackets
exponents and roots
multiplication and division As they appear left to right
addition and subtraction As they appear left to right

This means that if a mathematical expression is preceded by one operator and followed by another, the operator higher on the list should be applied first. The commutative and associative laws of addition and multiplication allow terms to be added in any order and factors to be multiplied in any order, but mixed operations must obey the standard order of operations.

It is helpful to treat division as multiplication by the reciprocal (multiplicative inverse) and subtraction as addition of the opposite (additive inverse). Thus 3/4 = 3 ÷ 4 = 3 • ¼; in other words the quotient of 3 and 4 equals the product of 3 and ¼. Also 3 − 4 = 3 + (−4); in other words the difference of 3 and 4 equals the sum of positive three and negative four. With this understanding, we can think of 1 - 2 + 3 as the sum of 1, negative 2, and 3, and add in any order: (1 - 2) + 3 = -1 + 3 = 2 and in reverse order (3 - 2) + 1 = 1 + 1 = 2. The important thing is to keep the negative sign with the 2.

The worksheets below reflect the left to right rule from Saxon's Math 7/6 page 495:

Order of Operations
1. Simplify within parenthesis.
2. Simplify powers and roots.
3. Multiply and divide from left to right.
4. Add and subtract from left to right.

Thanks to Crewton Ramone and Teresa C for helping here!

Many of our downloadable Math practice worksheets are several PDF pages long, meaning that the worksheets icon may have 2 printable Math worksheets and others may have a dozen as with our printable multiplication tables and other Math printables. Many of our free printable worksheets are simple enough to choose as preschool Math worksheets and the rest increase in difficulty K-6. Most of our free printable worksheets are at the bottom of their webpages. Using this page is easy; read on!

Remember, free common sense practice worksheets are the order of the day at A-Z Worksheets!

Say it! Write it! Repeat it!

You can offer as many A-Z Worksheets Order of Operations Worksheets to your students as you like, but don’t tarry too long since there is so much that cross-teaches the same rules throughout the years. Again, memorize the PEMDAS line. Parenthesis, exponents, multiplication, division, addition, and subtraction. "Please excuse my dear Aunt Sara." We find that when a student copies his work in a logical manner and says the problem or word out loud he has an easy time of learning the math facts well.

These Math Exponents Worksheets offer the practice necessary to become fast using exponents. If your student is not familiar enough with multiplication and division to tackle exponents we have worksheets and flashcards below these Exponent Worksheets. Negative exponents mean the reciprocal of the base raised to the power of the exponent.

## Order of Operations Worksheets

Remember that exponents come second in the order of operations for Pre-Algebra. Use this phrase to remember the order: "Please excuse my dear Aunt Sara." or use the phrase PEMDAS.

 PEMDAS Practice 1 PEMDAS Practice 2 PEMDAS Practice 3 PEMDAS Practice 4 PEMDAS Practice 5 PEMDAS Practice 6 PEMDAS Practice 7 PEMDAS Practice 8 PEMDAS Practice 9 PEMDAS Practice 10 PEMDAS Practice 11 PEMDAS Practice 12 PEMDAS Practice 13

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