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Math Jeopardy!. Simplify 2*(4+3) - 6/3 using Order of Operations. . 2*(4+3)-6/3=12. Simplify 8/4*2+1 using Order of Operations. . 8/4*2+1=5. Explain the Order of Operations. . Rules that describe the order that addition, subtraction, multiplication, and division must be performed.

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Math Jeopardy!


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Presentation Transcript
slide2
Simplify

2*(4+3) - 6/3

using Order of Operations.

slide4
Simplify

8/4*2+1

using Order of Operations.

slide7
Rules that describe the order that addition, subtraction, multiplication, and division must be performed.

Order of Operations:

  • Perform operations in parentheses
  • Evaluate Powers
  • Multiply and divide in order from left to right
  • Add and subtract in order from left to right
slide8
Simplify

20(2+6)-10(32/4)

using Order of Operations

slide10
Use your calculator to evaluate 72(60/5)2-3

Explain how you used Order of Operations while using your calculator.

slide12
Evaluate

8x-3

when x=1/2.

slide14
Evaluate

4x-1*2

when x=2 and when x=3.

slide15
4(2)-2=8-2

=6

4(3)-2=12-10

=2

slide16
Evaluate

4(9/x)/x

for x=12.

slide18
The dimensions of a rectangle are given below. If the x=3 what is the perimeter of the rectangle.

x

x+2

slide19
Perimeter= x+x+(x+2)+(x+2)

=2x+2(x+2)

=2(3)+2(5)

=6+10

=16

slide20
Kate just bought a cell phone plan that will cost $10 each month plus $0.10 for every minute she uses the phone. In October, she used 45 minutes. How much should she expect to pay when she gets the bill for October? (Write an equation for the cost, in dollars, when she uses x number of minutes)
slide21
y=0.10x+10

When x=45

y=14.5

slide24
Solve for p.

p-5+54=-1

slide25
p+49=-1

p=-1-49

=-50

slide26
Solve for a.

a+a-8=a+4

slide28
Mars is about 48 million miles farther away from the Sun than the Earth. Earth is about 93 million miles from the Sun. How far is Mars from the Sun? (Make sure to set up an equation involving x the total distance, in millions of miles, Mars is from the Sun)
slide29
x-48=93

x=93+48

x=141

Mars is 141 million miles from the Sun.

slide30
Joey is 4 years older than his little brother Tim. If the sum of their age is 30. How is Joey? How old is Tim? What is the equation that tells us this information?
slide31
x+(x-4)=30

x+x=34

x=17

So Joey is 17 and Timmy is 13.

slide34
Simplify

(1/3)/(2/4)

In other words what is one third divided by two fourths?

slide36
Simplify

7/(2/3)

In other words, what is 7 divided by two thirds?

slide38
Simplify

(5/2)/6

In other words, what is five halves divided by 6?

slide42
Simplify

(6/m)-(3/2m)

slide43
(6/m)-(3/2m)

=(12/2m)-(3/2m)

=9/2m

slide45
An algebraic expression that contains terms (e.g. x,4,(1/2)x) separated by operations (e.g. +,-,*,/). Rational expressions can be simplified by collecting like terms.
slide46
Simplify

(3x/6)+(x/4)

slide47
(3x/6)+(x/4)

=(12x/24)+(6x/24)

=(18x/24)

=3x/4

slide48
Simplify

(6/4s)*(2/3)

slide49
(6/4s)*(2/3)

=12/12s

=1/s

slide50
Stacy drove ¼ of the way to Atlanta in one day. The next day she drove 3/5 of the remaining distance. How much farther does she have to drive?
slide51
She has driven

(1/4)+(3/5)(3/4)

=5/20+9/20

=14/20 =7/10

This means she has 3/10 of the total distance left to travel.