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An art teacher buys 4 packs of oil paints. Each pack contains 18 tubes of paint.

Which equations represent the total number of tubes of paint the teacher bought? Check the TWO that apply.
NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature once per question.
(2 points)
• 18 + 18 + 18 + 18 = 72
18 + 4 = 22
• 22 - 4 = 18
04 × 18 = 72

1 answer

To find the total number of tubes of paint the art teacher bought, we need to multiply the number of packs by the number of tubes in each pack.

  1. 18 + 18 + 18 + 18 = 72: This equation correctly represents the total number of tubes by adding together the number of tubes in each of the 4 packs.

  2. 04 × 18 = 72: This equation also correctly represents the total number of tubes as it calculates the total using multiplication (though it looks like there is a typo with "04" which should be "4").

The equations that represent the total number of tubes of paint the teacher bought are:

  • 18 + 18 + 18 + 18 = 72
  • 4 × 18 = 72

The following equations are incorrect:

  • 18 + 4 = 22 (does not represent the total tubes)
  • 22 - 4 = 18 (also does not represent the total tubes)

The two correct equations are the first and fourth options, assuming the fourth is intended to be "4 × 18 = 72".