Adding Unknowns

How do you solve one step equations

• by guessing the answer

• by getting one side equal to 0

• by doing the same thing to both sides of the equal sign

• by doing the same thing to both sides of the variable

Tags

CCSS.6.EE.B.7

What is a variable?

• A number equal to 1

• an unknown number

• a number that is shy

Tags

CCSS.6.EE.A.2B

Which equation represents the following scenario?
Edger jogs for 20 minutes. He stretches and then jogs some more. In total, he jogs for 35 minutes. Let j = the number of miles he jogs after stretching.

• 35 + 20 = j
• 20 + j = 35
• 20j = 35
• j - 20 = 35

Tags

CCSS.HSA.CED.A.3

Which of the following is used to solve single step equations mathematically?

• substitution
• inverse operations
• frequency
• data analysis

Tags

CCSS.6.EE.B.7

Use mental math to solve. 15 = x + 6

• x = 9
• x = 15
• x = 6
• x = 12

Tags

CCSS.1.OA.D.8

Use mental math to solve. 13 = x - 7

• x = 13
• x = 7
• x = 20
• x = 30

Tags

CCSS.1.OA.D.8

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction
• addition
• multiplication
• division

Tags

CCSS.6.EE.B.7

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

Tags

CCSS.6.EE.B.7

Challenge Question:
12 + y + 17 = 59

• 29
• 88
• 30
• 42

Tags

CCSS.2.OA.A.1