Solving Addition and Subtraction Equations

Solve
4.7 = y + 1.34

• y = 6.04

• y = 1.81

• y = 3.46

• y = 3.36

Tags

CCSS.6.EE.B.7

99 = 51 + y

• y = 140

• y = 47

• y = 48

• y = -140

Tags

CCSS.6.EE.B.7

Write and solve the equation: Jeremy spent $7 on a sandwich and a drink. If he spent $1.75 on his drink, how much did his sandwich cost?

• s - 1.75 = 7 ; s = 8.75

• s + 1.75 = 7 ; s = 1.68

• s + 1.75 = 7 ; s = 5.25

• s + 7 = 1.75 ; s = -5.25

Tags

CCSS.6.EE.B.7

Write and solve the equation: You have a stack with some baseball cards. You gave 21 cards to a friend and you now have 9 left over. How many cards(c) did you start with?

• c + 9 = 21 ; c = 12

• c - 9 = 21 ; c = 30

• c - 21 = 9 ; c = 30

• c + 21 = 9 ; c = -12

Tags

CCSS.6.EE.B.7

Tags

CCSS.6.EE.B.7

Tags

CCSS.6.EE.B.7

Which property was used to solve this equation?

• Subtraction Property of Equality

• Addition Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Tags

CCSS.HSA.REI.A.1

What would be the best first step to solving the equation?

• add 3 to both sides

• subtract 5 from both sides

• add 5 to both sides

• subtract -5 from both sides

Tags

CCSS.6.EE.B.7

What is the inverse operation of subtraction?

• addition

• multiplication

• division

• subtraction

Tags

CCSS.2.NBT.B.5