Chapter 5 - Fractions and Standard Form

Question 1

What is the rule when you add or subtract fractions

Answer 1

They must have the same denominator, and simplify

Question 2

What is the rule when you multiply a fraction

Answer 2

Numerator * numerator and denominator * denominator, and simplify

Question 3

What is the rule when you divide a fraction

Answer 3

Flip the second fraction then multiply them, and simplify

Question 4

How do you find the standard form answer when doing multiplication or division

Answer 4

You put like terms together and then do the law of indices

Question 5

How do you find the standard form answer when doing addition or subtraction

Answer 5

Re-write the answers as ordinary number then do the problem, and put back to standard form

Question 6

What is the proper structure of standard form

Answer 6

Only a single digit in front of a decimal and all the rest go behind and you times it by 10 to the power of something to get it back to its original form

Question 7

What is the proper structure of standard form

Answer 7

Only a single digit in front of a decimal and all the rest go behind and you times it by 10 to the power of something to get it back to its original form

Question 8

How do you write standard form if you start from a number that is below 1

Answer 8

You right the number multiplied by 10 with a negative power