Order of operations and expressions

What equation represents the following situation: What number do you multiply 6 by to get 66?

• 6n=66

• 6 +n = 66

• 6-n = 66

• n/6 = 66

What equation matches this situation: Morris and Luther went shopping. Their total bill was $52.96. Morris knew he spent $31.24. How much did Luther spend?

• $31.24-L = $52.96

• $31.24 + L = $52.96

• $31.24L = $52.96

• L/$31.24 = $52.96

What equation matches this situation: Gigi has 64 baseball cards. How many should she give Carla so she will have only 49 left?

• 64 + C = 49

• 64C=49

• 64 - C = 49

• C/64=49

What equation matches this situation: What number do you divide by 9 to get 8?

• 9 + n = 8

• 9 - n = 8

• 9n = 8

• n/9=8

Which equation matches this situation: The local hockey team needs to win 11 games to reach the playoffs. They have already won 8 games. How many more games must they win to reach the playoffs?

• 8 + w = 11

• 8 - w = 11

• 8w = 11

• w/8 = 11

What equation matches this situation: Sam is making 100 cookies. He can fit 20 cookies on each cookie sheet. How many cookie sheets will be needed?

• C/20 = 100

• 20C = 100

• C - 20 = 100

• C + 20 = 100

What equation matches this situation: The perimeter of a rectangle is 400 feet and the width is 80 feet. What is the length of the rectangle?

• 160 - 2L = 400

• 2L/160 = 400

• 160 +2L = 400

• 2L = 400

Tell whether it's Equation or Expression: 6x-17

• Equation

• Expression

Tell whether it's an Equation or Expression: 3x + 9 = 12

• Equation

• Expression

Tell whether it's an Equation or Expression: 58-a = 17

• Equation

• Expression