Integers and Fractions
- 15 - (-11)
-4
Evaluate
37*82
139,968
(19-7)2 - 12 / 3(2)
136
Name the smallest subset of the following:
-√(256)
5-1
√(88)
integer, rational, irrational
|15| - |-9|
6
(-2)3*(-6)3
1728
3(5-|24|)-(√(361)+ 26)
-140
Always, Sometimes, Never
Natural numbers are _____ integers.
Negative numbers are _____ whole numbers.
Square roots are ______ rational numbers.
Always, never, sometimes
What is this as a fraction and percent?
-0.44444444444444...
-4/9 and -44.44%
Write the expression with a positive exponent.
2-5
1/32
(27-(32-2*5)) / (8-62)
-1
Define the inverse property and give an example
Inverse: We need to do the opposite operation to cancel something out.
Ex) 10 + (-10) = 0, 10 and -10 are opposites.
How many flags can be made from 116 1/4 yards of frabric if each flag requires 22/9 yards?
525/16, so only 52 flags!
3√(-27)
(cubed root)
-3
Evaluate the following:
8xy - 7y2
x = 2
y = -4
-176
Define the distributive property and give an example.
Distribution: Any number on the outside of the parenthesis must multiply EVERYTHING on the inside of the paranthesis.
Ex) 5(x+2) = 5x + 10
At the beginning of the year, Jack weighed 2404/5 lbs. At the end of the year he weighed 3/4 his original weight. What does he weigh now?
1803/5 lbs
3√(2744) + √(169)
14 + 13 = 27
3/2x - xy + 1
x = 5/6
y = 3/10
= 2
Rationals are decimals that end OR repeat. Can also be written as a fraction of integers a/b.
Irrationals are decimals that do NOT end AND do NOT repeat. Bonus points if you mentioned Pi.