Bill Diss

Contact information for Bill Diss

Math 20 Schedule

HW #1 Due January 18, 2022

  • 1.1:  Every Other Odd, 1, 5, 9, 13, … 81 (Starting on page 6)
  • 2.2:  Odd:  1, 3, 5, 7, 9, .. 75, skip problem 51.  (Starting on page 111)
  • Write all time tables out in the following format:
    • 1 x 1 = 1
    • 1 x 2 = 2
    • 1 x 3 = 3
    • ….
    • all the way to 12 x 12 = 144

HW #2 Due January 25, 2022

  • 1.2:  1, AND THEN 5, 10, 15, 20, … 95
  • 1.3:  1, AND THEN 5, 10, 15, 20, … 90
  • 1.4:  1, 3, 5, 7, … 45

HW #3 Due February 1, 2022

  • 1.5: 1, 3, 5, … to 87.  Odd problems and please draw pictures and answer any worded problem or application with a complete sentence.
  • Read 1.6 and 1.7
  • Test #1 on Thursday, February 3, 2022 on most of chapter one and 2.2.

HW #4 Due February 10, 2022

  • 1.6: 1, 3, 5, … to 95.  Odd problems and please draw pictures and answer any worded problem or application with a complete sentence.
  • Please read 1.7 and 1.8.

HW #5 Due February 15, 2022

  • 1.7:  1 –  93 odd.  Also, 103 – 106

HW #6 Due February 22, 2022

  • 2.1:  1, and then 5 – 95 by 5
  • 2.3:  1, and then 5 – 75 by 5

HW #7 Due March 1, 2022

  • 2.5:  41 – 56
  • 2.6:  57 – 72

Test #2 Preparation for March 3, 2022

  • These are not graded, but please do them to prepare for the test.
  • Page 68:  88 – 93
  • Page 158:  90 – 97
  • Pages 214 – 215:  42 – 46 and 51 – 53

HW #8 Due March 8, 2022

  • A general note on mixed numbers.  When adding, subtracting, multiplying or dividing, please first convert any mixed number to an improper fraction.  Some people are trying to do reciprocals before they have just one improper fraction.  Look at Example 3a. on page 145 to see the process.
  • Page 216:  10 – 15
  • Page 217:  1 – 30.  Please look at the following notes for page 217:
    • On question 28.  Please write P = “and then the numbers for the three sides.”  Ex.  P = 2ft + 3ft + 8ft (NOTE:  these are not the exact values; this is only an example.
    • On question 29 please write the formula for the area of a  triangle :
    •  Please look at page 126 to see how the steps should look.
  • Please read 4.1 carefully on decimals and do a quick read on all sections in Chapter Four.  The problems for 4.1 are the following:
  • 4.1:  1 – 45 odd.

 

HW #9 Due March 1, 2022

  • Please read carefully sections 4.2 through 4.5.  Please look at examples.
  • Please look at following link to see an example with division of decimals.
  • Please do problems on pages 286 and 287:  21 – 27 odd, 33 – 39 odd, 47 – 55 odd.
  • Please rework all problems on Test #1 and Test #2 to prepare for final.

 

NO CLASS on March 22, 2022 [Finals’ Week]

Final on March 24, 2022, Thursday

  • Please redo all questions on Test #1 and Test #2
  • The final will cover ALL TOPICS covered during the term.
  • Make sure you work some problems from HW #8 and HW #9.
  • We still covered problems after HW #9 and here are some problems to practice:
    • Page 275:
      • 28.  Convert the mixed number to an improper fraction, and then divide the numerator by the denominator in this improper fraction to obtain a decimal.  Once both numbers are decimals, do the division.
    • Page 635:
      • 18.  Set up a ratio of the first number and units over the second number and units.  Divide the numerator and denominator by four.  Your answer is the reduced fraction with units.
      • 19  Set up a proportion of 1/6 = 3.5/x.  Cross multiply and solve.
      • 22.  Set up a proportion of 300/336 = p/100.  Cross multiply and solve.
      • 37, 38, 39.  These use positive and negative numbers.