Math Year 8 Easter Week 1

Revision

How much can you recall?

Multiple Choice

What is the standard form for 3312?

• 3.312*10³

• 3.312*10²

• 3.312*10^-3

• 3.312*10²

Multiple Choice

Factors of 18 are 1, 2, 3, 6, 9, 18.

Prime factors of 18 are.....

• 1, 2, and 3

• 2, 3, and 6

• 3, 9, and 18

Multiple Choice

What is 1/4 as a decimal?

• 0.2

• 0.25

• 0.4

• 0.15

Multiple Select

Write 36 as the product of it's prime factors...

• 2 x 2 x 3 x 3

• 2 x 2 x 2 x 3

• 2² x 3²

• 2² x 3

Multiple Choice

How many sig figs are there?
100.00

• 1
• 3
• 4
• 5

Multiple Choice

5-7

• 2

• -2

• 12

• -12

Multiple Choice

What is the standard form 0.01345?

• 1.345*10²

• 1.345*10³

• 1.345*10^-2

• 1.345*10

Multiple Choice

-3-8

• 11

• -5

• 5

• -11

Multiple Choice

How many sig figs are there?
4004

• 1
• 2
• 3
• 4

Multiple Choice

4- -4

• 0

• -8

• 8

• 16

Multiple Choice

Write 135 as the product of it's prime factors...

Write your answer in index form...

• 3² x 5²

• 3³ x 5

• 3 x 3 x 3 x 5

• 3 x 3 x 5 x 5

Multiple Choice

27-29

• -2

• 2

• 56

• -56

Multiple Choice

Round 0.010229 to four sig figs

• 1022
• 1023
• 0.01023
• 0.01022

Multiple Choice

-3+25

• is a positive answer.

• is a negative answer

Multiple Choice

What is 7/10 as a decimal?

• 0.7

• 0.1

• 0.07

• 7

Multiple Choice

-133+35

• Positive

• Negative

Multiple Choice

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

Multiple Choice

-23-4

• 27

• -27

• 19

• -19

Multiple Choice

Write 80 as the product of it's prime factors...

Write your answer in index form...

• 2⁴ x 5

• 2 x 2 x 2 x 5 x 5

• 2 x 2 x 2 x 2 x 5

• 2³ x 5²

Multiple Choice

23 less than 4

• 19

• 27

• -19

• -27

Multiple Choice

Round 1009 to three sig figs

• 100
• 101
• 1010
• 1000

Multiple Choice

-4 - (-7)

• -11

• 3

• -3

• 5

Multiple Choice

Find the prime factorization of 40

• 2 x 5 x 2
• 2 x 20
• 5 x 8
• 2 x 2 x 2 x 5

Multiple Choice

104 more than negative 29

• Positive

• negative

Multiple Choice

What is 78.5 rounded to one significant figure?

• 79

• 8

• 78

• 80

Multiple Choice

negative 6 minus 4

• -10

• 10

Multiple Choice

A common factor of two integers is always a ____________ of their HCF.

• multiple

• factor

• (no answer)

Multiple Choice

The amount of steps on a number line between 12 and negative 6.

• 6

• -6

• 18

• -18

Multiple Choice

What is 0.658 rounded to 1 significant figure?

• 0

• 0.66

• 0.7

• 0.6

Multiple Choice

Which is closest to a 1/3 as a decimal?

• 0.3

• 0.33

• 0.34

• 0.333

Multiple Choice

What is 98.907 rounded to 1 significant figure?

• 98.9

• 90

• 100

• 1

Multiple Choice

A common multiple of two integers is always a ____________ of their LCM.

• multiple

• factor

• (no answer)

Multiple Choice

Round 1289 to three significant figures

• 1290

• 130

• 1300

• 129

Multiple Choice

What is the standard form for 4345?

• 4345*10

• 4345*10³

• 4345*10²

• 4345*10^-3

Multiple Choice

How many significant figures are in 107,003 m?

• 3

• 4

• 6

• 5

Multiple Choice

What is the LCM of 2, 4, 6?

• 6

• 12

• 4

• 2

Multiple Choice

How many significant figures are in 42.0 s?

• 1

• 2

• 3

• infinite

Multiple Choice

What is 0.34 as a percentage?

• 0.34%

• 3.4%

• 34%

• 340%

Multiple Choice

Round off 15.2784 to 2 decimal place.

• 15

• 15.28

• 15.2800

• 15.27

Multiple Choice

What is the greatest common factor of 24 and 36?

• 2

• 3

• 12

• 24

Multiple Choice

Round off 71 448 to 2 significant figures.

• 71 000

• 71

• 72 000

• 72

Multiple Choice

What is the prime factorization of 15?

• 3x3x3
• 2x2x5
• 15
• 3x5

Multiple Choice

Round 1.823 to the nearest whole number.

• 1

• 1.8

• 2

• 2.8

Multiple Choice

What is the GCF of 4 and 12?

• 3
• 1
• 6
• 4

Multiple Choice

Round 1.82 to the nearest whole number.

• 1
• 1.8
• 2
• 2.8

Multiple Choice

What is 0.6 as a percentage?

• 0.6%

• 6%

• 60%

• 66%

Multiple Choice

Given two different prime numbers, their HCF is:

• The smaller prime

• The larger prime

• 1

• Unknown, as we don't know what they are

Multiple Choice

What is 11132 written in standard form?

• 1.1132*10⁴

• 1.1132*10^-4

• 1.1132*10^-1

• 1.1132*10¹

Multiple Choice

Given two different prime numbers, their LCM is:

• The smaller prime

• The larger prime

• Unknown, as we don't know what they are

• Their product

• Their sum

Multiple Choice

What is 0.09 as a percentage

• 0.9%

• 9%

• 90%

Multiple Choice

There are two positive integers, a and b. Given that their HCF is 15. Which of the followings cannot be their LCM?

• 105

• 225

• 125

• 195

Multiple Choice

Which one lists ALL of the factors of 18?

• 1, 2, 9, 18
• 1, 18
• 1, 2, 3, 6, 9, 18
• 2, 3, 6, 9

Multiple Choice

There are two positive integers, a and b. Given that their LCM is 120. Which of the followings cannot be their HCF?

• 60

• 36

• 15

• 40

Multiple Choice

What is 3/4 as a decimal?

• 0.25

• 0.50

• 0.75

• 0.34

Multiple Choice

There are two positive integers, a and b. Which statement is always true?

• a x b = LCM(a,b) x HCF(a,b)

• a x b > LCM(a,b) x HCF(a,b)

• a x b < LCM(a,b) x HCF(a,b)

• (a x b)^2 = LCM(a,b) x HCF(a,b)

Multiple Choice

What is the 323.2314 in standard form?

• 3.232314 *10²

• 3.232314 *10^-2

• 3.232314 *10⁶

• 3.232314 *10^-6

Multiple Choice

What is 4/5 as a percentage?

• 45%

• 40%

• 90%

• 80%

Multiple Select

Write 36 as the product of it's prime factors...

• 2 x 2 x 3 x 3

• 2 x 2 x 2 x 3

• 2² x 3²

• 2² x 3

Multiple Choice

44% can be written as the following decimal and fraction...

• 0.44 and 44/10 
• 0.44 and 44/100
• 0.4 and 44/100
• 0.4 and 44/10

Multiple Choice

115.134 in standard form is?

• 1.15134 *10²

• 1.15134 *10^-2

• 1.15134 *10^-5

• 1.15134 *10⁵

Multiple Choice

The fraction 4/10 can be written as the following decimal and percent...

• 0.4, 40%
• 0.4, 4%
• 0.4, 0.4%
• 0.04, 4%

Multiple Choice

Which choice lists all the factors for the number 24?

• 2, 3, 4, 6, 8, 12, 24
• 2, 3, 4, 6, 8, 12, 24, 36
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 4, 5, 6, 8, 12 ,24

Multiple Choice

Which describes the shaded portion of the figure?

• 1/2 = 50%
• 1/6 = 0.166....
• 1/5 = 25%
• 1/5 = 20%

Multiple Choice

0.000134 in standard form is

• 1.34*10⁴

• 1.34*10²

• 1.34*10^-4

• 1.34*10^-2

Multiple Choice

3/4 is equivalent to which percent?

• 25%
• 50%
• 60%
• 75%

Multiple Choice

What are the factors of 14?

• 1,14
• 1, 2, 7, 14
• 2, 7
• 1, 14

Multiple Choice

What is the percent of the shaded portion of the figure??

• 20 %
• 60%
• 80%
• .60%

Multiple Choice

89467 is the same as ___________ in standard form.

• 8.9467*10⁴

• 8.9467*10^-4

• 8.9467*10

• 8.9467*10³

Multiple Choice

Change this decimal to a percent.
0.528

• 528%
• 52.8%
• 5.28%
• 52%

Multiple Choice

What are the factors of 35?

• 1,35
• 5,7
• 1,3,5,7,35
• 1,5,7,35

Multiple Choice

Write 5/100 as a decimal 

• 0.05
• 0.5
• 0.51
• 1.5

Multiple Choice

What is the original number for 5.13*10²?

• 513

• 5130

• 0.513

• 0.0513

Multiple Choice

What is 42% expressed as a decimal?

• 0.42
• 4.2
• 42
• 0.042

Multiple Choice

What are the factors of 28?

• 1,2,4,7,14,27
• 1,2,4,7,14,28
• 1,2,4,7,14,29
• 1,2,4,7,14,26

Multiple Choice

What is the fraction and decimal for 25%?

• 1/4 and 25.00
• 75% and .25
• .25 and 1/4
• .25

Multiple Choice

0.009836 is the same as?

• 9.836*10³

• 9.836*10^-3

• 9.836*10²

• 9.836*10^-2

Multiple Choice

write given  decimal number as a fraction.
0.6

• 6/100
• 6/10

Multiple Choice

Is 8 a factor of 32?

• Yes
• No

Multiple Choice

write given  decimal number as a fraction.
0.24

• 24/100
• 24/1000

Multiple Choice

Which number is a factor of 45?

• 4
• 2
• 9

Multiple Choice

Express 0.2 as a percentage

• 20%

• 2%

• 0.2%

• 200%

Multiple Choice

The factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24.

Prime factors of 24 are .....

• 6 and 8

• 2 and 3

• 12 and 24

• 1, 2 and 3

Multiple Select

Write 16 as the product of it's prime factors...

• 2 x 2 x 2 x 2

• 2 x 2 x 2

• 2³

• 2⁴

Multiple Choice

Find the prime factorization of 40

• 2 x 5 x 2
• 2 x 20
• 5 x 8
• 2 x 2 x 2 x 5