Decimal Equations

Test Review (Equations with Decimals & Metric System)

Hi! Get ready to show off what you have learned!

Solving equations:

#goal

Isolate the variable

HOW?

Use inverse operations!

The inverse of adding is subtracting.

The inverse of subtracting is adding.

The inverse of multiplying is dividing.

The inverse of dividing is multiplying.

Multiple Choice

What operation must be done on both sides of the equation to solve

$$r\ -\ 2.3\ =\ 7.9$$  ?

• Add

• Subtract

• Mulitply

• Divide

Multiple Choice

What must be done on both sides of the equation to solve

$$3.4q\ =\ 7.1$$  ?

• Multiply by 3.4

• Multiply by 7.1

• Divide by 3.4

• Multiply by 3.4

Multiple Choice

Solve

$$t\ +\ 18.5\ =\ -41$$  

• 22.5

• -22.5

• -59.5

• 59.5

Multiple Choice

Solve

$$p\ -\ 1.1\ =\ 4.4$$  

• -5.5

• 5.5

• -3.3

• 3.3

Multiple Choice

Solve

$$11.32a\ =\ -39.62$$  

• 448.4984

• -3.5

• -448.4984

• 3.5

Multiple Choice

Solve  $$\frac{r}{8.04}\ =\ 1.55$$  

• 5.187

• -12.462

• 12.462

• .1928

Multiple Choice

$$9.2\ L\ =\ _{ }$$  ____ mL

• 92

• 9200

• 0.0092

• 0.092

Multiple Choice

7.25 g = _______ kg

• 0.00725

• 725

• 7,250

• 0.0725

Multiple Choice

0.18 m = _______ mm

• 0.018

• 1.8

• 18

• 180