1. Today in MPS Turn in HW Assignment (Scientific Notation)
Significant Figures Notes
“Siggy Figgy” Practice

2. Significant Figures a.k.a – “siggy figgies” Rules:
All non-zero digits are significant.
Trailing zeros after the decimal are significant.
Zeros between two other significant digits are significant.
Leading zeros are never significant

3. “siggy figgies”
How many significant digits are contained in each of the following numbers? Copy this assignment on a separate sheet of paper. Circle your answers.

4. “siggy figgies” ADDITION AND SUBTRACTION
The answer should be rounded off so as to contain the same number of decimal places as the least accurate value.
Examples:
digits after the decimal
digits after the decimal
digits after the decimal
digit after the decimal
digits after the decimal
digits after the decimal
digit after the decimal

5. “siggy figgies” MULTIPLICATION AND DIVISION
The answer should be rounded off so as to contain the lowest number of significant digits, regardless of the decimal point.

6. “siggy figgies” Examples: 3.17 3 significant digits
x significant digits
significant digits
significant digits
significant digits
  = significant digits

7. “siggy figgies”
Copy this assignment on a separate sheet of paper. Write your answer using the correct number of significant figures. Circle your answers. –
x 4.103
/ 3.12
x 2.79 x 4.06
17. (1.75)3
x 2.74 / x
– 3.71
x 3.0