Write 360000 in standard form

3.6 x 10^{5 }

Write 5 780 000 in standard form

5.78 x 10^{6}

Write 0.0085 in standard form

8.5 x 10^{-3}

0.0007 in standard form

7 x 10^{-4}

work out **without **a calculator

(4 x 10^{6}) x ( 3 x 10^{5 })

give your answer in **standard form **

(3x4) x( 10^{6 }x 10^{5 }

12 x 10^{11 }= 1.2 x 10^{12}

Write 7/10 as a decimal

0.7

Write 1/4 as a decimal

0.25

Write 3/8 as a decimal

0.375

What is 0.8 as a percentage?

80%

find 2/5 of 25

(25 ÷ 5 ) x 2 = 10

find 4/7 of 280

(280÷ 7) x 4 = 160

What are the first 5 square numbers ?

1, 4, 9, 16, 25

What are the first 5 cube numbers

1, 8, 27, 64 125

what is the cubed root of 125

5

what is 2^{3 }

2 x 2 x 2 = 8

Factors of 20

1, 2, 4, 5, 10, 20

Multiples of 7

7, 14, 21, 28, 35, ...

The first five prime numbers

2, 3, 5, 7, 11

Highest common factor of 12 and 8

4

Lowest common multiple of 12 and 8

24

3 + 5 x 3

18

-4 x -3

12

-3 x 2

-6

-10 ÷ 2

-5

-4 - 3

-7

-20 ÷ -5

4

The first 3 integers that satisfy x > 9

10, 11, 12

Cube root of 125

5

Square of 9

81

What does this say

3 < x < 8

x is greater than 3 and less than 8