Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
- 3rd side (hint)
Identify the property:
a * b = b * a |
Commutative Property of Multiplication
|
variables change place
|
|
Identify the property:
3 * 0 = 0 |
Property of zero
|
multiplying by zero
|
|
Identify the property:
a + b = b + a |
Commutative Property of Addition
|
variables change place
|
|
Identify the property:
(a + b) + c = a + (b + c) |
Associative Property of Addition
|
arms around the variables change
|
|
Identify the property:
(ab)* c = a * (bc) |
Associative Property of Multiplication
|
arms around the variables change
|
|
Identify the property:
5 * 1 = 5 a * 1 = a |
Identity Property of Multiplication
|
names itsself
|
|
Identify the property:
5 + 0 = 5 a + 0 = a |
Identity Property of Addition
|
names itsself
|
|
Rewrite using the Distributive Property of Multiplication:
4(a + 6) |
4*a + 4*6
|
multiply by all terms within the parentheses
|
|
Simplify using the Distributive Property of Multiplication:
8(y + 8) + 3 |
8y + 8*8 + 3
8y + 64 + 3 8y + 67 |
multiply only the terms inside the parentheses;
add only like terms |
|
What is a variable?
|
A variable represents a number.
|
Variables can change from equation to equation
|
|
Write an expression for:
a number increased by eight |
n + 8
any letter is correct |
use a variable
increased by means add |
|
Write an expression for:
three times a number decreased by 10 |
3n - 10
any letter is correct |
use a variable
decreased means subtract |
|
Write an expression for:
three times a number divided by 6 |
3n/6
any letter is correct |
use a variable
|
|
Write an expression for:
six less than a number |
n - 6
any letter is correct |
use a variable
less than means subtract take 6 from the number |
|
Write an expression for:
four times a number increased by one divided by two times another number less three |
4n + 1 any two letters are
------ correct 2y - 3 |
use two different variables
|
|
What is the order of operations?
|
parentheses
exponents multiply & divide left to rt add & subtract left to right |
Please excuse my dear aunt Sally
|
|
Evaluate for c = 3, m = 2:
2c + 5(m - 1) |
2c + 5(m - 1)
2c + 5(2 - 1) 2c + 5(1) 2*3 + 5 6 + 5 11 |
Use order of operations
|
|
Evaluate for a = 5, b = 7, c = 3
3(a + 2) + b * 6 + c |
3(a + 2) + b * 6 + c
3(5 + 2) + 7 * 6 + 3 3(7) + 7 * 6 + 3 21 + 42 + 3 66 |
Use order of operations
|
|
Rewrite using the distributive property:
5u + 5y |
5(u + y)
|
use parentheses
|
|
Simplify:
6(a + 2) + 3 |
6(a + 2) + 3
6a + 12 + 3 6a + 15 |
multiply 6 times terms inside parentheses only
|