Integers

By Matthew Bailey And Derrick Cross.

  • Part I: Choose #'s: 0.5; -3; 7; -3/4
  • Part II: Compare #'s: 0.5 > -3; 7 > -3/4; 7 > 0.5; -3 < 7; -3 < -3/4; 0.5 > -3/4;
  • From Least to Greatest: -3, -3/4, 0.5, 7
  • Part III: Absolute Value: l0.5l = 0.5; l-3l = 3; l7l = 7; l-3/4l = 3/4
  • Anything that comes out of the absolute value lines, positive or negative, is always going to be a positive.
  • Part IV: Operations with Integers
  • Addition: 7 + (-3) = 4; 0.5 + (0.5) = 0
  • Subtraction: 7 - (-3) = 4; 0.5 - (-7) = -6.5
  • Multiplication: 7(-3) = -21; 0.5(.05) = .25
  • Division: 7/(-3) = -2.3333; 0.5/3 = .16666
  • Part V: Real Life Word Problems
  • Derrick had 7 apples. Matthew took away 3 apples. Derrick now has 4 apples.
  • Matthew was doing a math problem with his friend Derrick but Derrick was having trouble so, this is what happened. 0.5-(7) Derick wanted to know why their were parenthesis so I told him about P.E.M.D.A.S to do the parenthesis first so, he did 7.00+ (0.500) and he got 7.5.
  • Matthew was having trouble with fractions so Mrs. Perry show'd an example on how to subtract fractions. The problem was 3/4 - (7) so P.E.M.D.S said to do parentheses first so, 7 - 3/4 and 3/4 as a decimal is .75 so, 7.00-0.75 and Matthew got 6.25.