scientific notation, common notation, significant digit

Question 1

what is scientific notation?

Answer 1

expressing regular number as the number multiplied by 10^x

Question 2

what is common notation?

Answer 2

expressing scientific notation as regular number

Question 3

what way does positive exponent go? negative?

Answer 3

positive exp. makes number BIGGER, negative makes it SMALLER

Question 4

are zeros in between non-zero numbers important?

Answer 4

yes

Question 5

are non-zero numbers important?

Answer 5

yes

Question 6

are trailing zeros (after decimal) significant?

Answer 6

yes

Question 7

are leading zeros significant?

Answer 7

no

Question 8

how many significant digits are in 500?

Answer 8

1 because the zeros are trailing with NO decimal

Question 9

how many significant digits are in 500. ?

Answer 9

3 because the zeros are trailing WITH decimal

Question 10

how many significant digits are in 500.0?

Answer 10

4 because there are trailing zeros WITH decimal

Question 11

what is the rule for addition and subtraction?

Answer 11

round answer so it has the same number of decimal places as the measurement having the FEWEST decimal places

Question 12

what is the rule for multiplication and division?

Answer 12

round answer so it has the same amount of significant digits as the measurement with the least