Show:
Addition
Subtractions
Multiplication
Division
Mixed
100
What is the inverse operation of addition?
subtraction
100
What is the inverse operation of subtraction?
addition
100
What is the inverse operation of multiplication?
division
100
What is the inverse operation of division?
multiplication
100
Is x = 7 a solution to 54 + x = 61? Explain why or why not?
Yes, x = 7 is a solution because 54 + 7 is 61 and 61 is equal to 61.
200
What is the solution to x + 5 = 17
x = 12
200
What is the solution to x - 8 = 3
11
200
What is the solution to 3x = 27
x = 9
200
What is the solution to x/2 = 12 ?
x = 24
200
Is c = 11 a solution to 4c + 8 - 5 = 57. Explain why or why not.
No, because 4(11) + 8 - 5 = 47 and 47 is not equal to 57.
300
What is the solution to y + 83 = 174?
y = 91
300
What is the solution to x - 84 = 876
x = 960
300
What is the solution to 8x = 168?
x = 21
300
t/5 = 6
t = 30
300
Is 22 a solution for the following equation? 34 = y - 12
No. The correct solution is _____.
400
a + 5.5 = 17.3
a = 11.8
400
1.2 = m - 2.5
m = 3.7
400
12.5n = 32
n = 2.56
400
81 = 9r
r = 9
400
Is 7 the solution to the following equation? x/4 = 28
No. The correct solution is _______.
500
x + 2/3 = 9/10
x = 7/30
500
3/4 = j - 1/2
j = 1 1/4
500
3.5m = 20.4
m = 5.8
500
2730 = 65h
h = 42
500
Write a multiplication equation that has 2.5 as the solution.
Answers will vary and must be verified.