Which expression is NOT equal to 11 × (7 − 1)?

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Multiple Choice

Which expression is NOT equal to 11 × (7 − 1)?

Explanation:
This question checks your ability to evaluate expressions and compare them to a specific value, using straightforward arithmetic (and you can use a quick distributive check to see why 11 × (7 − 1) equals 66). Compute the target: 11 × (7 − 1) = 11 × 6 = 66. Now look at each expression: - 3 × 23 = 69, which is not 66. - (6+5)×6 = 11×6 = 66, matches. - 6 × 7 + 8 × 3 = 42 + 24 = 66, matches. - 1084 − 1018 = 66, matches. Thus, the expression that is not equal to 66 is 3 × 23.

This question checks your ability to evaluate expressions and compare them to a specific value, using straightforward arithmetic (and you can use a quick distributive check to see why 11 × (7 − 1) equals 66).

Compute the target: 11 × (7 − 1) = 11 × 6 = 66.

Now look at each expression:

  • 3 × 23 = 69, which is not 66.

  • (6+5)×6 = 11×6 = 66, matches.

  • 6 × 7 + 8 × 3 = 42 + 24 = 66, matches.

  • 1084 − 1018 = 66, matches.

Thus, the expression that is not equal to 66 is 3 × 23.

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