order of operations 1. multiplication & division 2. addition & subtraction + - ÷
TRANSCRIPT
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ORDER OF OPERATIONSORDER OF OPERATIONS
1. Multiplication & Division
2. Addition & Subtraction
+ - • ÷
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1. Multiplication & Division
• Solve in the order they appear from left to right.
2. Addition & Subtraction
• Solve in the order they appear from left to right.
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1. Multiplication & Division
• Solve in the order they appear from left to right.
2. Addition & Subtraction
• Solve in the order they appear from left to right.
![Page 4: ORDER OF OPERATIONS 1. Multiplication & Division 2. Addition & Subtraction + - ÷](https://reader035.vdocument.in/reader035/viewer/2022062713/56649f465503460f94c685f5/html5/thumbnails/4.jpg)
In the problem below:5 + 6 • 3 - 4
Which operation is solved first?
In the problem below:5 + 6 • 3 - 4
Which operation is solved first?
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•Multiply first… and rewrite the rest of the problem.
5 + 6 • 3 - 45 + 18 - 4
Next?
•Multiply first… and rewrite the rest of the problem.
5 + 6 • 3 - 45 + 18 - 4
Next?
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•Add…and rewrite the rest of the problem.
5 + 6 • 3 - 45 + 18 - 423 - 4
•Add…and rewrite the rest of the problem.
5 + 6 • 3 - 45 + 18 - 423 - 4
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•Last…subtract.5 + 6 • 3 - 45 + 18 - 423 - 419
•Last…subtract.5 + 6 • 3 - 45 + 18 - 423 - 419
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Let’s try another one!24 ÷ 2 • 4
Which operation is solved first?
Let’s try another one!24 ÷ 2 • 4
Which operation is solved first?
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•Divide first. It appears first. Rewrite the rest of the problem.
24 ÷ 2 • 412 • 4
•Divide first. It appears first. Rewrite the rest of the problem.
24 ÷ 2 • 412 • 4
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•Multiply and rewrite the rest of the problem.
24 ÷ 2 • 412 • 4
48
•Multiply and rewrite the rest of the problem.
24 ÷ 2 • 412 • 4
48
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•Multiply and rewrite the rest of the problem.
24 ÷ 2 • 4
12 • 4
48
Notice….The problem will be in a triangular
shape.
•Multiply and rewrite the rest of the problem.
24 ÷ 2 • 4
12 • 4
48
Notice….The problem will be in a triangular
shape.
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Solve this one.
18 + 4 ÷ 2 - 8
Solve this one.
18 + 4 ÷ 2 - 8
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Divide first….even though it is in the middle of the problem.
Divide first….even though it is in the middle of the problem.
18 + 4 ÷ 2 - 8 18 + 2 - 8
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Next add…rewrite the rest of the problem.
18 + 4 ÷ 2 - 8 18 + 2 - 8 20 - 8
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18 + 4 ÷ 2 - 818 + 2 - 8 20 - 8
12
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Try this with me…..
35 + 5 • 7 - 14
Try this with me…..
35 + 5 • 7 - 14
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35 + 5 • 7 - 14 35 + 35 - 1435 + 5 • 7 - 14
35 + 35 - 14
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35 + 5 • 7 - 14 35 + 35 - 1435 + 5 • 7 - 14
35 + 35 - 14
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35 + 5 • 7 - 14 35 + 35 - 14 70 - 14
35 + 5 • 7 - 14 35 + 35 - 14 70 - 14
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35 + 5 • 7 - 14 35 + 35 - 14 70 - 14 56
35 + 5 • 7 - 14 35 + 35 - 14 70 - 14 56
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Get an answer to this one!
15 ÷ 3 + 20 • 5
5 + 20 • 5
5 + 100
105
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Simplify these on topic paper!
1. 45 - 5 + 13
2. 20 ÷ 4 • 7
3. 10 - 24 ÷ 4 • 2
4. 4 • 3 + 25 ÷ 5
5. 6 + 8 ÷ 2 • 5
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Solutions
1. 45 - 5 + 13
2. 20 ÷ 4 • 7
3. 10 - 24 ÷ 4 • 2
4. 4 • 3 + 25 ÷ 5
5. 6 + 8 ÷ 2 • 5
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1. 45 - 5 + 13 40 + 13
53
1. 45 - 5 + 13 40 + 13
53
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2. 20 ÷ 4 • 7 5 • 7
35
2. 20 ÷ 4 • 7 5 • 7
35
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3. 10 - 24 ÷ 4 • 2 10 - 6 • 2
10 - 12- 2
3. 10 - 24 ÷ 4 • 2 10 - 6 • 2
10 - 12- 2
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4. 4 • 3 + 25 ÷ 5 12 + 25 ÷ 5
12 + 5 17
4. 4 • 3 + 25 ÷ 5 12 + 25 ÷ 5
12 + 5 17
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5. 6 + 8 ÷ 2 • 5 6 + 4 • 5 6 + 20
26
5. 6 + 8 ÷ 2 • 5 6 + 4 • 5 6 + 20
26
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Grouping Symbols( parentheses )
[ brackets ]
{ braces }
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( ) parentheses
•Solve first…using order of operations rules inside.
( ) parentheses
•Solve first…using order of operations rules inside.
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[ ]brackets
• Solve second…using order of operations rules inside.
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{ }braces
•Solve third…using order of operations rules inside.
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• Grouping symbols are nested inside each other and are worked from the inside to the outside.
{ [ ( ) ] }
• Grouping symbols are nested inside each other and are worked from the inside to the outside.
{ [ ( ) ] }
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• A number or grouping symbols next to grouping symbols indicates multiplication.
7(6 - 4)
• This means 7 times the (6 - 4) answer or
7•2
• A number or grouping symbols next to grouping symbols indicates multiplication.
7(6 - 4)
• This means 7 times the (6 - 4) answer or
7•2
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• When several grouping symbols are in the same problem simplify ( ), then [ ], then { }.
(1) [2] {3}
• Follow order of operations rules in the grouping symbols.
4{7 +6[5(3+9)-(8-2)]}4{7+6[5(3+9)-(8-2)]}
4{7+6[5•12-6]}
• ( ) are now removed.
• When several grouping symbols are in the same problem simplify ( ), then [ ], then { }.
(1) [2] {3}
• Follow order of operations rules in the grouping symbols.
4{7 +6[5(3+9)-(8-2)]}4{7+6[5(3+9)-(8-2)]}
4{7+6[5•12-6]}
• ( ) are now removed.
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• Next simplify inside the brackets remembering to use order of operations.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}
• Next simplify inside the brackets remembering to use order of operations.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}
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•Simplify inside the braces remembering to use order of operations.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}4{7+324}4•3311324
•Simplify inside the braces remembering to use order of operations.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}4{7+324}4•3311324
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• Last multiply to finish the problem.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}4{7+324}4•3311324
• Last multiply to finish the problem.
4{7+6[5(3+9)-(8-2)]} 4{7+6[5•12-6]}4{7+6[60-6]}4{7+6•54}4{7+324}4•3311324
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• Simplify these on topic paper. SHOW ALL WORK!!!
1.8+7(5-1)2.3(10-2)÷43.15-2[36-4(5+3)]4.[3(6+5)-2(8-4)+2]55.20-1{3+3[2(4-3)+(7-5)]}
• Simplify these on topic paper. SHOW ALL WORK!!!
1.8+7(5-1)2.3(10-2)÷43.15-2[36-4(5+3)]4.[3(6+5)-2(8-4)+2]55.20-1{3+3[2(4-3)+(7-5)]}
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Solution:8+7(5-1)8+7•48+2836
Solution:8+7(5-1)8+7•48+2836
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Solution:3(10-2)÷43•8÷424÷46
Solution:3(10-2)÷43•8÷424÷46
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Solution:15-2[36-4(5+3)]15-2[36-4•8]15-2[36-32]
15-2•415-87
Solution:15-2[36-4(5+3)]15-2[36-4•8]15-2[36-32]
15-2•415-87
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Solution:[3(6+5)-2(8-4)+2]5
[3•11-2•4+2]5[33-8+2]5[25+2]527•5135
Solution:[3(6+5)-2(8-4)+2]5
[3•11-2•4+2]5[33-8+2]5[25+2]527•5135
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Solution:20-1{3+3[2(4-3)+(7-5)]}
20-1{3+3[2•1+2]}20-1{3+3[2+2]}20-1{3+3•4}20-1{3+12}20-1•1520-15
5
Solution:20-1{3+3[2(4-3)+(7-5)]}
20-1{3+3[2•1+2]}20-1{3+3[2+2]}20-1{3+3•4}20-1{3+12}20-1•1520-15
5
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Simplifying ExponentsSimplifying Exponents
42
4 is the base2 is the exponent. It tells
you how many times to take the base times itself.
42 = 4 • 4 = 16
42
4 is the base2 is the exponent. It tells
you how many times to take the base times itself.
42 = 4 • 4 = 16
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Simplifying ExponentsSimplifying Exponents
42
4 is the base2 is the exponent. It tells
you how many times to take the base times itself.
42 = 4 • 4 = 16
42
4 is the base2 is the exponent. It tells
you how many times to take the base times itself.
42 = 4 • 4 = 16
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When exponents are in order of operations problems they are usually simplified first.
For example, in the problem32+5-4
32 is simplified first.
When exponents are in order of operations problems they are usually simplified first.
For example, in the problem32+5-4
32 is simplified first.
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32+5-4
Simplify using order of operation rules.
3•3+5-49+5-414-410
32+5-4
Simplify using order of operation rules.
3•3+5-49+5-414-410
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• If exponents are outside of grouping symbols, you must simplify the grouping symbols first. Then follow order of operations.
2+5(6-4)3
2+5(2)3
2+5•82+4042
• If exponents are outside of grouping symbols, you must simplify the grouping symbols first. Then follow order of operations.
2+5(6-4)3
2+5(2)3
2+5•82+4042
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• If exponents are outside of grouping symbols, you must simplify the grouping symbols first. Then follow order of operations. The exponent will be simplified second. DO NOT MULTIPLY BY THE 5 BEFORE YOU SIMPLIFY THE EXPONENT.
2+5(6-4)3
2+5(2)3
2+5•82+4042
• If exponents are outside of grouping symbols, you must simplify the grouping symbols first. Then follow order of operations. The exponent will be simplified second. DO NOT MULTIPLY BY THE 5 BEFORE YOU SIMPLIFY THE EXPONENT.
2+5(6-4)3
2+5(2)3
2+5•82+4042