ISEE Middle Level Quantitative : Orders of Operations

Study concepts, example questions & explanations for ISEE Middle Level Quantitative

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Example Questions

Example Question #42 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 1\times (54-33)\div3

 

Possible Answers:

\displaystyle 7

\displaystyle 30

\displaystyle 43

\displaystyle 3

\displaystyle 27

Correct answer:

\displaystyle 7

Explanation:

\displaystyle 1\times (54-33)\div3

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the multiplication, and then the division.

\displaystyle 54-33=21

\displaystyle 1\times21=21

\displaystyle 21\div3=7 

Example Question #43 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 4\times(66-54)

Possible Answers:

\displaystyle 40

\displaystyle 32

\displaystyle 56

\displaystyle 66

\displaystyle 48

Correct answer:

\displaystyle 48

Explanation:

\displaystyle 4\times(66-54)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\displaystyle 66-54=12

\displaystyle 4\times12=48

Example Question #44 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 37+(44-28)\div4

 

Possible Answers:

\displaystyle 51

\displaystyle 37

\displaystyle 27

\displaystyle 13

\displaystyle 41

Correct answer:

\displaystyle 41

Explanation:

\displaystyle 37+(44-28)\div4

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the division, and then the addition. 

\displaystyle 44-28=16

\displaystyle 16\div4=4

\displaystyle 37+4=41

Example Question #45 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 9\times(68-57)

 

Possible Answers:

\displaystyle 67

\displaystyle 99

\displaystyle 65

\displaystyle 57

\displaystyle 90

Correct answer:

\displaystyle 99

Explanation:

\displaystyle 9\times(68-57)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\displaystyle 68-57=11

\displaystyle 9\times11=99

Example Question #46 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 52\div(75-62)

 

Possible Answers:

\displaystyle 28

\displaystyle 4

\displaystyle 13

\displaystyle 22

\displaystyle 7

Correct answer:

\displaystyle 4

Explanation:

\displaystyle 52\div(75-62)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the division. 

\displaystyle 75-62=13

\displaystyle 52\div13=4

Example Question #47 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 17+(34-32)\times 7

 

Possible Answers:

\displaystyle 31

\displaystyle 23

\displaystyle 104

\displaystyle 92

\displaystyle 133

Correct answer:

\displaystyle 31

Explanation:

\displaystyle 17+(34-32)\times 7

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the multiplication, and then the addition. 

\displaystyle 34-32=2

\displaystyle 2\times7=14

\displaystyle 17+14=31

Example Question #48 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 81\div(14-5)

 

Possible Answers:

\displaystyle 3

\displaystyle 7

\displaystyle 18

\displaystyle 12

\displaystyle 9

Correct answer:

\displaystyle 9

Explanation:

\displaystyle 81\div(14-5)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the division. 

\displaystyle 14-5=9

\displaystyle 81\div9=9

Example Question #49 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 9+2\times2+(42-29)

 

Possible Answers:

\displaystyle 32

\displaystyle 26

\displaystyle 36

\displaystyle 47

\displaystyle 43

Correct answer:

\displaystyle 26

Explanation:

\displaystyle 9+2\times2+(42-29)

When solving this problem, remember order of operations PEMDAS. The parentheses come first, followed by the multiplication, and then addition. 

\displaystyle 42-29=13

\displaystyle 2\times2=4

\displaystyle 9+4+13=26

Example Question #41 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle (3+4)\times9

 

Possible Answers:

\displaystyle 47

\displaystyle 56

\displaystyle 60

\displaystyle 63

\displaystyle 53

Correct answer:

\displaystyle 63

Explanation:

\displaystyle (3+4)\times9

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication. 

\displaystyle 3+4=7

\displaystyle 7\times9=63

Example Question #51 : Use Parentheses, Brackets, Or Braces In Numerical Expressions And Evaluate These Expressions: Ccss.Math.Content.5.Oa.A.1

Solve:

\displaystyle 4\times8+(56-17)

 

Possible Answers:

\displaystyle 71

\displaystyle 93

\displaystyle 89

\displaystyle 78

\displaystyle 83

Correct answer:

\displaystyle 71

Explanation:

\displaystyle 4\times8+(56-17)

When solving this problem, remember order of operations PEMDAS. The parentheses come first followed by the multiplication, and then the addition. 

\displaystyle 56-17=39

\displaystyle 4\times8=32

\displaystyle 32+39=71

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