Addition
x + 4 = 25
What is 21
x - 20,000 = 60,000
What is 80,000
9x = 27
What is 3
y/6 = 2
What is 12
Define Inverse Operations and provide the pairs of Inverse Operations
Inverse Operations are opposite operations that undo the original operation and can be used to isolate the variable and find the solution.
Multiplication to Division
Subtraction to Addition
a + 13 = 27
What is 14
d - 7 = 92
What is 99
7x = 63
What is 9
x/4 = 14
What is 56
What is the difference between expressions and equations? Give an example of BOTH
Expressions do not have equal signs. Equations have equal signs.
Example of Expression 3+4 .
Example of Equation 3+4=7
n + 82 = 175
What is 93
k - 831=1215
What is 2046
5e = 400
What is 80
x/6 = 6
What is 36
3x+4
Label the constant, variable, coefficient AND terms.
3 is the coefficient
x is the variable
4 is the constant
3x and 4 are the terms
x + 36 = 100
What is 64
x - 327 = 665
What is 992
11x = 275
What is 25
28 = a/13
What is 364
Define algorithm and substitution.
Algorithm- step by step procedure or process to solve problems
Substitution- to replace a number with a variable
2,776 = c + 653
What is 2,123
a - 63 = 392
What is 455
21y = 756
What is 36
80 = x/15
What is 1200
Define term. Give an example.
Parts of an expression that are separated by operations.
3m+3x-7+4 The terms are: 3m, 3x,7, 4. There are 4 terms in total.