Sum.
What is an answer to an addition problem?
Solve and Check
x + .8 = 1.5
x = 0.7
Solve and check.
x - 3.7 = 19.01
x = 22.71
Solve and check.
2x = 100
x = 50
Solve and check.
x/0.2 = 10.5
x = 2.1
Difference.
What is an answer to a subtraction problem?
Determine whether a number is a solution of an equation.
h = 1.73
8.78 + h = 9.01
H= 1.73 is not a solution.
h= 0.23
Determine whether a number is a solution of an equation.
h = 2.64
8.01 - h = 10.65
h = 2.64 is a solution.
Determine whether a number is a solution of an equation.
h = 9
7h = 49
h = 9 is not a solution.
h = 7
Determine whether a number is a solution of an equation.
h = 25
h/5 - h = 5
h = 5 is a solution.
Product.
Quotient.
What is an answer to a multiplication problem?
What is an answer to a division problem?
Solve and check.
5 = a + 6
a = -1
Solve and check.
1.2 = q - 19.45
q = 20.65
Solve and check.
3.4x = 13.6
x = 4
Solve and check.
r/6 = 9
q = 54
Addition : Subtraction
as
Multiplication : Division
What are the inverse operations?
The sum of a number and 3.24 is 10.50. Find the number and complete a check.
N = 7.26
The difference of a number and 1.03 is 15.1. Find the number and complete a check.
N = 16.13
The product of a number and 1.03 is 9.27. Find the number and complete a check.
N = 9
The quotient of a number and 9 is 8 Find the number and complete a check.
N = 72
3/4 4/3
5/2 2/5
What is the reciprocal?
The sum of a number and 4 is -5. Find the number and complete a check.
N = -9
The difference of a number and 4.81 is 5.08. Find the number and complete a check.
N = 0.28
The product of a number and 9 is 81. Find the number and complete a check.
N = 9
20 + 2x = 100
x = 40