4 percentages game
DESCRIPTION
Presentation for a quiz between two teams in order to review percentages. Secondary School Maths.TRANSCRIPT
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You will be divided into two teams:TEAM A and TEAM B.
Each team must work together to solve the following equations about percentage before the time runs out!
Calculate the percentage in your head. You have 15 seconds for each question.
TEAM A is up first.
Ready… Set… GO!!!
1% of 450TEAM A:
1% of 450
Time’s Up!
TEAM A:
1% of 450
is 4.5
TEAM A:
Now, TEAM B takes a turn.
Ready… Set… GO!!!
10% of 27TEAM B:
10% of 27TEAM B:
Time’s Up!
10% of 27
is 2.7
TEAM B:
10% of 165TEAM A:
10% of 165
Time’s Up!
TEAM A:
10% of 165
is 16.5
TEAM A:
50% of 30TEAM B:
50% of 30TEAM B:
Time’s Up!
50% of 30
is 15
TEAM B:
25% of 40TEAM A:
25% of 40
Time’s Up!
TEAM A:
25% of 40
is 16.5
TEAM A:
50% of 2.2TEAM B:
50% of 2.2TEAM B:
Time’s Up!
50% of 2.2
is 1.1
TEAM B:
25% of 10TEAM A:
25% of 10
Time’s Up!
TEAM A:
25% of 10
is 2.5
TEAM A:
1% of 5TEAM B:
1% of 5TEAM B:
Time’s Up!
1% of 5
is .05
TEAM B:
50% of 250TEAM A:
50% of 250
Time’s Up!
TEAM A:
50% of 250
is 125
TEAM A:
10% of 820TEAM B:
10% of 820TEAM B:
Time’s Up!
10% of 820
is .05
TEAM B:
1% of 21.5TEAM A:
1% of 21.5
Time’s Up!
TEAM A:
1% of 21.5
is .215
TEAM A:
100% of 14TEAM B:
100% of 14TEAM B:
Time’s Up!
100% of 14
is 14
TEAM B:
Find the value of the missing number n in each equation. You will have 30 seconds for each question.
TEAM A is up first.
50% of n is 8.TEAM A:
Time’s Up!
TEAM A:
50% of n is 8.
50% of n is 8.
n = 16
TEAM A:
15% of n is 7.5TEAM B:
TEAM B:
Time’s Up!
15% of n is 7.5
15% of n is 7.5
n = 50
TEAM B:
7% of n is 8.75TEAM A:
Time’s Up!
TEAM A:
7% of n is 8.75
7% of n is 8.75
n = 125
TEAM A:
120% of n is 96TEAM B:
TEAM B:
Time’s Up!
120% of n is 96
120% of n is 96
n = 80
TEAM B:
4.5% of n is 112.5TEAM A:
Time’s Up!
TEAM A:
4.5% of n is 112.5
4.5% of n is 112.5
n = 2500
TEAM A:
35.8% of n is 71.6TEAM B:
TEAM B:
Time’s Up!
35.8% of n is 71.6
35.8% of n is 71.6
n = 200
TEAM B:
Calculate the percentage in your head. You have 15 seconds for each one.
TEAM A is up!
10% of 1250TEAM A:
10% of 1250
Time’s Up!
TEAM A:
10% of 1250
is 125
TEAM A:
25% of 88TEAM B:
25% of 88TEAM B:
Time’s Up!
25% of 88
is 22
TEAM B:
20% of 400TEAM A:
20% of 400
Time’s Up!
TEAM A:
20% of 400
is 80
TEAM A:
15% of 300TEAM B:
15% of 300TEAM B:
Time’s Up!
15% of 300
is 45
TEAM B:
75% of 2000TEAM A:
75% of 2000
Time’s Up!
TEAM A:
75% of 2000
is 1500
TEAM A:
30% of 60TEAM B:
30% of 60TEAM B:
Time’s Up!
30% of 60
is 18
TEAM B:
You have 30 seconds to solve the following word problems.
20% of a quantity is 40.
What is the quantity?
TEAM A:
Time’s Up!
TEAM A:
20% of a quantity is 40.
What is the quantity?
TEAM A:
The quantity is 200.
10% of a number is 35. What is the
number?
TEAM B:
Time’s Up!
TEAM B:
10% of a number is 35. What is the
number?
TEAM B:
The number is 350.
Solve the following equations in your head. This time you only have 10 seconds!
50% of 220TEAM A:
50% of 220
Time’s Up!
TEAM A:
50% of 220
is 110
TEAM A:
50% of 82TEAM B:
50% of 82TEAM B:
Time’s Up!
50% of 82
is 41
TEAM B:
25% of 800TEAM A:
25% of 800
Time’s Up!
TEAM A:
25% of 800
is 200
TEAM A:
25% of 60TEAM B:
25% of 60TEAM B:
Time’s Up!
25% of 60
is 15
TEAM B:
25% of 280TEAM A:
25% of 280
Time’s Up!
TEAM A:
25% of 280
is 70
TEAM A:
50% of 4600TEAM B:
50% of 4600TEAM B:
Time’s Up!
50% of 4600
is 2300
TEAM B:
50% of 12TEAM A:
50% of 12
Time’s Up!
TEAM A:
50% of 12
is 6
TEAM A:
75% of 800TEAM B:
75% of 800TEAM B:
Time’s Up!
75% of 800
is 600
TEAM B:
75% of 280TEAM A:
75% of 280
Time’s Up!
TEAM A:
75% of 280
is 210
TEAM A:
75% of 60TEAM B:
75% of 60TEAM B:
Time’s Up!
75% of 60
is 45
TEAM B:
Find the value of the missing number x in each equation. You will have 20 seconds for each question.
50% of x is 150.TEAM A:
Time’s Up!
TEAM A:
50% of x is 150.
50% of x is 150.
x = 300
TEAM A:
25% of x is 120TEAM B:
TEAM B:
Time’s Up!
25% of x is 120
25% of x is 120
x = 480
TEAM B:
75% of x is 150.TEAM A:
Time’s Up!
TEAM A:
75% of x is 150.
75% of x is 150.
x = 200
TEAM A:
50% of x is 7TEAM B:
50% of x is 7TEAM B:
Time’s Up!
50% of x is 7
x = 14
TEAM B:
25% of x is 6.TEAM A:
25% of x is 6.
Time’s Up!
TEAM A:
25% of x is 6.
x = 24
TEAM A:
75% of x is 9TEAM B:
75% of x is 9TEAM B:
Time’s Up!
75% of x is 9
x = 12
TEAM B:
10% of x is 31.TEAM A:
Time’s Up!
TEAM A:
10% of x is 31.
10% of x is 31.
x = 310
TEAM A:
20% of x is 18TEAM B:
20% of x is 18TEAM B:
Time’s Up!
20% of x is 18
x = 90
TEAM B:
5% of x is 35.TEAM A:
5% of x is 35.
Time’s Up!
TEAM A:
5% of x is 35.
x = 700
TEAM A:
10% of x is 4TEAM B:
10% of x is 4TEAM B:
Time’s Up!
10% of x is 4
x = 40
TEAM B:
20% of x is 86.TEAM A:
Time’s Up!
TEAM A:
20% of x is 86.
20% of x is 86.
x = 430
TEAM A:
5% of x is 2TEAM B:
5% of x is 2TEAM B:
Time’s Up!
5% of x is 2
x = 40
TEAM B: