Solving Equations: Adding and Subtracting

What inverse operation would you use to solve this problem?
 g - 57 = 113

• subtract
• add

Tags

CCSS.6.EE.B.7

What is the main task when evaluating equations?

• to cancel numbers
• to isolate the variable

Tags

CCSS.6.EE.B.7

y - 71 = 211

• 280
• 140
• 282
• 380

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

s + 42 = 75

• 33
• 117
• 36
• 43

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What does inverse mean?

• The same
• The opposite

Tags

CCSS.HSF.BF.B.4

CCSS.HSF.BF.B.5

5 + a = 37

• a = 37

• a = 42

• a = 185

• a = 32

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

- 12 + x = 11

• x = -1
• x = - 132
• x = 23
• x = - 11/12

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.NS.C.5

x - 5.5 = 13.53

• x = 8.03
• x = - 8.03
• x = - 19.03
• x = 19.03

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

y+25=80
What steps do you need to solve this problem?

• Add 25 to both sides
• Subtract 25 to both sides
• Divide 25 on both sides
• Multiple 25 on both sides

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

What is the inverse operation of adding (+)?

• Adding (+)
• Subtracting (-)
• Multiplying (×)
• Dividing (÷)

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.9

CCSS.2.OA.A.1