One-Step Equations and Properties

What equation matches the scenario?

Amanda and her best friend found some money buried in a field. They split the money evenly, each getting $24.28. How much money did they find?

• $\frac{1}{2}\left(24.28\right)=m$

• $m\div2=24.28$

• $m\times2=24.28$

• $\frac{24.28}{2}=m$

 $13+k=25$  Explain how to solve the equation.

• Isolate the variable "k" by dividing by 13 on both sides of the equation. The solution is k=1.92.

• Isolate the variable "k" by adding 13 to both sides of the equation. The solution is k=38.

• Isolate the variable "k" by multiplying 13 on both sides of the equation. The solution is k=325.

• Isolate the variable "k" by subtracting 13 from both sides of the equation. The solution is k=12.

What is the inverse operation of subtraction?

• Addition

• Subtraction

• Multiplication

• Division

What is the inverse operation of multiplication?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.3.OA.A.2

CCSS.3.OA.B.6

CCSS.3.OA.C.7

What is the inverse operation of addition?

• Addition

• Subtraction

• Multiplication

• Division

What is the inverse operation of division?

• Addition

• Subtraction

• Multiplication

• Division

Translate the following statement into an equation and solve for the unknown variable.

Fourteen more than a number is ten.

• $x+10=14$ $x=4$

• $14x=10$ $x=\frac{5}{7}$

• $x+14=10$ $x=-4$

• $x-14=10$ $x=24$

What is the goal for solving an equation?

• Isolating the unknown variable.

• Guess and check.

• Substitution.

• Combining like terms.

Which of the following can always be used when checking your solution to an equation?

• Distributive Property

• Inverse Operations

• Substitution

• Difference

To solve the equation below, which inverse operation would you use?
 $15=3t$  

• Multiply both sides by 15.

• Divide both sides by 15.

• Multiply both sides by 3.

• Divide both sides by 3.