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.

Question

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(2 points)
Responses

18+18+18+18=72
18 plus 18 plus 18 plus 18 is equal to 72

22−4=18
22 minus 4 is equal to 18

18+4=22
18 plus 4 is equal to 22

4×18=72
4 times 18 is equal to 72
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Answer 1

To calculate the total number of tubes of paint the teacher bought, you need to multiply the number of packs by the number of tubes in each pack. The appropriate equations would be:

1. 18 + 18 + 18 + 18 = 72 (This shows the total by adding each pack's tubes individually.)
2. 4 × 18 = 72 (This correctly uses multiplication to represent the total number of tubes.)

So, the two correct equations that represent the total number of tubes of paint the teacher bought are:

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