Solving One Step Equations: Addition and Subtraction

Mrs. Zimmerman teaches sixth graders how to solve one-step equations using addition and subtraction. The lesson covers checking if a value is a solution, using inverse operations, and solving equations with decimals and fractions. Students also learn to apply these skills to real-world story problems.

If p + 10 = 38 and p = 18, is this equation true?

• No, because 18 + 10 equals 38

• Yes, because 18 + 10 equals 38

• No, because 18 + 10 equals 28

• Yes, because 18 + 10 equals 28

What is the inverse operation of subtraction?

• Multiplication

• Division

• Subtraction

• Addition

Solve the equation: x - 2 = 6. What is x?

• 10

• 8

• 6

• 4

In the equation 18 = x - 7, what is the value of x?

• 18

• 7

• 25

• 11

Solve the equation: a + 5.5 = 17.3. What is a?

• 11.8

• 12.8

• 10.8

• 9.8

If m - 2.5 = 1.2, what is the value of m?

• 4.7

• 3.7

• 5.7

• 2.7

What is the common denominator for adding 3/4 and 1/2?

• 2

• 4

• 8

• 6

Solve the equation: 3/4 = j - 1/2. What is j?

• 5/4

• 1/4

• 1

• 3/2

You climb 12 feet on a 25 feet high wall. How much distance is left to the top?

• 17 feet

• 15 feet

• 13 feet

• 10 feet

A pine tree is 120 feet tall and is 40 feet taller than an elm tree. How tall is the elm tree?

• 60 feet

• 70 feet

• 80 feet

• 90 feet