Post on 24-Jun-2015
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Q. 16 x 5
Q. 16 x 5
Ans. 80
Q. 841 ÷ 10
Q. 841 ÷ 10
Ans. 84.1
Q. 2 x -5
Q. 2 x -5
Ans. -10
Q. Factorise
6 x - 10
Q. Factorise
6 x - 10
Ans. 2(3x-5)
45 of 52 Q.
Ans. 18
45 of 52 Q.
Q. Solve:
2x + 6 = 14
Q. Solve:
2x + 6 = 14
Ans. X = 4
Q. What is the mean?
3 4 5 8
Q. What is the mean?
Ans. 5(Total =20 then divide by the
number of values)
3 4 5 8
Q. What is the median?
3 4 5 8
Q. What is the median?
Ans. 4.5
3 4 5 8
Q. 42 x 40
Q. 42 x 40
Ans. 1680
Q. What is the area of:
12 cm
5 cm
13 cm
Q. What is the area of:
Ans. 30 cm²
12 cm
5 cm
13 cm
Q. What is the area of this circle:
r
Q. What is the area of this circle:
Ans. πr²
r
Q. a² x a³ = a?
Q. a² x a³ = a?
Ans. a5
Q.The probability that it rains on March 21st is .5
2
What is the probability that it doesn’t rain?
53
Q.The probability that it rains on March 21st is .
Ans.
52
What is the probability that it doesn’t rain?
53
Q. Simplify:
3x+2x-x
Q. Simplify:
3x+2x-x
Ans. 4x
Q. From this list of numbers:
6 9 10 17 30 35 60
Which one is a prime number?
Q. From this list of numbers:
Ans. 17
6 9 10 17 30 35 60
Which one is a prime number?
Q. From this list of numbers:
6 9 10 17 30 35 60
Which one is a square number?
Q. From this list of numbers:
Ans. 9
6 9 10 17 30 35 60
Which one is a square number?
Q. From this list of numbers:
6 9 10 17 30 35 60
Which one is a multiple of 20?
Q. From this list of numbers:
Ans. 60
6 9 10 17 30 35 60
Which one is a multiple of 20?
Q. From this list of numbers:
6 9 10 17 30 35 60
Which one is a factor of 20?
Q. From this list of numbers:
Ans. 10
6 9 10 17 30 35 60
Which one is a factor of 20?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
1 2
2 8
3 6
4 4
How many cars were in the survey?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Ans. 20 cars
Number of people in a car, x
Number of cars with that number of people, f
1 2
2 8
3 6
4 4
Total 20
How many cars were in the survey?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
1 2
2 8
3 6
4 4
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2
2 8
3 6
4 4
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8
3 6
4 4
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6
4 4
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6 18
4 4
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6 18
4 4 16
Total 20
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Ans. 52 people
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6 18
4 4 16
Total 20 52
What is the total number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6 18
4 4 16
Total 20 52
What is the mean number of people in the cars?
As part of a project Sam counts the number of people in each car arriving at school one morning.
The table shows his results.
Ans. 2.6 people (52 ÷ 20)
Number of people in a car, x
Number of cars with that number of people, f
fx
1 2 2
2 8 16
3 6 18
4 4 16
Total 20 52
What is the mean number of people in the cars?
Q. 15% of £62
Q. 15% of £62
Ans. £9.30
Q. Increase 330ml by 20%
Q. Increase 330ml by 20%
Ans. 396ml
Q. 5² + 2³
Q. 5² + 2³
Ans. 33 (25 + 8)
Q. 0.3 x 0.2
Q. 0.3 x 0.2
Ans. 0.06
21
53 Q.
21
53 Q.
103 Ans.
Q. Write 192000 in standard form
Q. Write 192000 in standard form
Ans. 1.92 x 105
Q. Write 5.03 x 10-3 as an ordinary number
Q. Write 5.03 x 10-3 as an ordinary number
Ans. 0.00503
Q. Simplify 2n x 3n²
Q. Simplify 2n x 3n²
Ans. 6n³