Tuesday, February 07, 2017

Number Systems

Agenda for Wednesday, February 8, 2017.
  1. Diagnostic Tests are marked and your mark is in TeachAssist!  How did you do?  The class average was 51.8/60 or 86.3%.  
  2. Warm up on Decimals and Rounding
    Sometimes for ease, we need to round decimals so that we don't have to deal with so many digits.  The simple rounding rule is:
>5 Round Up
<5 Round Down
=5 Round to the even number

Example 1:  Round to the nearest ones.
a) 12.5     b) - 1.15    c)  14.6    d) 0.3    e) - 2.7
ANSWERS:  a) 12  b) - 1  c)  15  d) 0  3) - 3
Example 2:  Round to the nearest tenth.
a)  0.38    b)  - 1.45    c)  4.62    d)  - 5.76    e) 0.12

ANSWERS:  a)  0.4  b)  - 1.4  c)  4.6  d)  - 5.8  e)  0.1
Example 3:  Round to the nearest hundredth.
a)  2.585    b) - 35.698
ANSWERS:  a)  2.58  b)  - 35.70

2.  Lesson:  Number Systems
You will continue to review adding, subtracting, multiplying and dividing integers and fractions, with and without the use of a calculator.
3.  Homework:  Page 6 #4, 6a, 7, Page 7 #1, 2a, 3, 4a, 5, 6, Page 8
4.  Formative Quiz tomorrow!