Vocab
A real number that can be written as a fraction
Jake has 4 dollars in his bank account he withdraws 2 how much money does Jake have in his bank account now?
2
1/2 x 1/2
1/4
-12 x 8
96
-4 + 7
3
What is Absolute value?
The distance a number is from zero
Paul goes to the store and buys two pencils each costing 10 cents. then he bought 4 erasers that cost 80 cents total how much did one eraser cost?
20 cents
1/8 + -8/8
-7/8
-27 divided by l -3 l
-9
-2+-19
-21
What's a negative number?
A number below zero
sally got 20 dollars from her mom and went to the store and bought 1 dress 2 books and 1 pencil the book cost 3 dollars the pencil cost 10 cents and the dress costed 12 dollars how much money does Sally have leftover?
1 dollar and 90 cents
72/-9 simplfy
-8
(-4) x 6-(-15)
-8-(-5)+3
0
whats an irrational number?
when a number is a decimal it doesn't terminate of repeat
jamie dive 20 feet below sea level swims up 10 then dives down another 40 feet how far below sea level is jamie
-50
john ate 1/2 of a pizza and then 1/4th of the leftover pizza how much pizza did John have left
1/4
5 x (-3)-[-4-2 x (-6)]
-23
l 24 l - 26 + l- 84 l
82
additive inverse?
when you add two numbers together to get zero
johnny buys 10 apples 20 oranges and 2 grapefruits one apple costs 3 dollars 20 oranges costs 50 dollars and 1 grapefruit costs 5 dollars how much money did he spend total
90 dollars
-24/8 + 12/4
0
-8-3 x (-4)-(-6)
10
[(-20)divided by 4]-[(-12)-(-18)divided by 3]
1