Day 8 Writing Expressions notes.notebook
August 21, 2015
What Property?
1) (5+3) +2 = 5 + (3 +2)
2) 5(2) = 2(5)
3) 8(7q) = ( 8x7 )q
4) 2/3 x 5/5 = 10/15
5) 4/3 x 0 = 0
Aug 17­7:44 AM
What Property?
1) (5+3) +2 = 5 + (3 +2)
2) 5(2) = 2(5)
3) 8(7q) = ( 8x7 )q
4) 2/3 x 5/5 = 10/15
5) 4/3 x 0 = 0
Aug 17­7:44 AM
1
Day 8 Writing Expressions notes.notebook
August 21, 2015
Aug 17­7:36 AM
Write the expression:
1) 3 less than 1/2 of a number
2) Half the difference between a number and three
3)If the length of a board in centimeters is l, a) What is the length of a board 7cm shorter?
b) What is the length of a board 6cm longer?
Aug 17­7:19 AM
2
Day 8 Writing Expressions notes.notebook
August 21, 2015
Write the expression:
1) 3 less than 1/2 of a number
2) Half the difference between a number and three
3)If the length of a board in centimeters is l, a) What is the length of a board 7cm shorter?
b) What is the length of a board 6cm longer?
Aug 17­7:19 AM
Formulas:
1) Area of a rectangle:
2) Perimeter of a rectangle:
3) Distance traveled:
4) Cost
Aug 17­7:28 AM
3
Day 8 Writing Expressions notes.notebook
August 21, 2015
Formulas:
1) Area of a rectangle:
2) Perimeter of a rectangle:
3) Distance traveled:
4) Cost
Aug 17­7:28 AM
Practice writing formula equations:
1) Find the area of a rectangle with length 10 and width w.
2)You and your friends buy 2 pizzas at p dollars each and and 4 salads at s dollars each. How much do you and your friends spend?
3) You travel (h + 1/2) hrs at 70 mi/
hr. How far do you travel?
Aug 17­7:29 AM
4