Standard Form

Question 1

What is the standard form format?

Answer 1

A x 10^n

Question 2

What is the rule for A in the standard form format?

Answer 2

This number must always be between 1 and 10

Question 3

What is the rule for n in the standard form format?

Answer 3

This number is just the number of places the decimal point moves

Question 4

When is n positive?

Answer 4

for BIG numbers

Question 5

When is n negative?

Answer 5

for SMALL numbers

Question 6

Express 35,600 in standard form.

Answer 6

3.56 x 10^4

Question 7

Express 0.0000623 in standard form.

Answer 7

6.23 x 10^-5

Question 8

Express 4.95 x 10^-3 as an ordinary number.

Answer 8

0.00495

Question 9

Which is the largest number in the following list? 9.5 x 10^8 / 2.7 x 10^5 / 3.6 x 10^8

Answer 9

9.5 x 10^8

Question 10

Write 4.32 x 10^8 as an ordinary number.

Answer 10

432,000,000

Question 11

Write 0.000387 in standard form

Answer 11

3.87 x 10^-4

Question 12

Which of these numbers is the smallest? 2.6 x 10^-3 / 1.9 x 10^-3 / 3.4 x 10^-2

Answer 12

1.9 x 10^-3

Question 13

Work out (9 x 10^7)/(3 x 10^4). Give answer in standard form.

Answer 13

3 x 10^3

Question 14

Work out (6.7 x 10^10) - (4.8 x 10^10). Give answer in standard form.

Answer 14

1.9 x 10^10