Write and evaluate algebraic expressions

• Evaluate algebraic expressions


  Substitute replace with
• What is the value of 3x - 4.5 when x = 0.4?

  • 3(0.4) - 4.5
  • 0.15 - 4.5
  • -4.35
• What is the value of 8.4n-3.2p when n = 2 and p = 4?

  • 8.4(2) - 3.2(4)
  • 16.8 - 12.8
  • 4
• Expression 9.99d+ 12.99c


  Total cost of d pounds of almonds and c pounds of cashews
• Cost to buy 1½ pounds of almonds and 2½ pounds of cashews

  • 9.99(1.5) + 12.99(2.5)
  • 14.985 + 32.475
  • $47.46
• Cost to rent a scooter for 3 hours and a watercraft for 1 hour

  • 15.5(3) + 22.8(1)
  • 54.25 + 39.9
  • $94.15
• Cost to buy 2 pounds of almonds and 3 pounds of cashews


  • 9.00(2) + 9.74(3)
  • 18 + 29.22
  • $47.22
• Expression 20 - d


  Amount of food left in automatic dog feeder after d days
• Misumi's account balance after w weeks

  • 217 + 25.5w
• Expression m - 32.50


  Amount Malik has left after paying for lunch
• Malik's earnings after paying for lunch

  • 963 - 32.50
  • $288.50
• Expression 8.74h + 3.50


  Emelia's job pay in a day
• Emelia's job pay for 5.5 hours

  • 8.74(5.5) + 3.50
  • $51.57
• Expression 2 + 1h


  Depth of tidal river after h hours
• Depth of tidal river after 4 hours

  • 2 + 1(4)
  • 2 + 4
  • 6 feet