Prateek needs 24 balloons for a party. He has 15 balloons already. Which equation would you choose to find how many balloons Prateek still needs for the party?
Question and options
Prateek needs 24 balloons for a party. He has 15 balloons already. Which equation would you choose to find how many balloons Prateek still needs for the party?
- 15 + ... = 24
- 24 - 7 =
- 24 + 15 =
- 15 x 9 =
Answer and explanation
Correct answer: A - 15 + ... = 24
Prateek has 15 and needs 24, so the missing number is found from 15 + ... = 24 (it is 9). 24 - 7 and 24 + 15 use the wrong operation or number, and 15 x 9 is unrelated.
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CUSAT CAT Five-Year LL.B.
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