One Step Addition and Subtraction Equations

Why do you add 7 to both sides?

• To undo addition, you subtract.

• To balance the equation, you subtract 7 on both sides.

• To undo subtraction, you add.

• To balance the equation,you add 7 to both sides.

Tags

CCSS.HSA.REI.A.1

r + 20 = 27

• r = 7

• r = 47

• r = 13

• r = 20

Tags

CCSS.6.EE.B.7

Why do you add 7?

• To undo addition, you subtract.

• To balance the equation, you subtract 7 on both sides.

• To undo subtraction, you add.

• To balance the equation,you add 7 to both sides.

Tags

CCSS.HSA.REI.A.1

Solve the equation.
46 = n + 19

• n = 37

• n = 27

• n = 65

• n = 30

Tags

CCSS.6.EE.B.7

Solve the equation
c - 21 = 45

• 66

• 62

• 24

• none of the above

Tags

CCSS.6.EE.B.7

Solve the equation
a - 40 = 57

• 17

• 28

• 97

• 99

Tags

CCSS.6.EE.B.7

What is the inverse operation of subtraction?

• addition

• subtraction

• multiplication

• division

Tags

CCSS.HSA.REI.A.1

Solve the equation: s - 33 = 89

• s = 134

• s = 145

• s = 122

• s = 213

Tags

CCSS.6.EE.B.7

Solve the equation: y + 13 = 24

• y = 12

• y = 10

• y = 11

• y = 14

Tags

CCSS.6.EE.B.7

Solve the equation: z + 19 = 35

• z = 13

• z = 14

• z = 15

• z = 16

Tags

CCSS.6.EE.B.7