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1. |
What is always the final answer to this Think of a Number trick.Think of a number.Multiply by 2.Add 4 times the original number.Divide by 6. |
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A. |
10 |
B. |
10 times the number you started with |
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C. |
the same number you started with |
D. |
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Hint |
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2. |
Rewrite the expression: 7 · (2n – 4) |
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A. |
2 middot; n – 28 |
B. |
7 · n – 28 |
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C. |
14 · n – 4 |
D. |
14 · n – 28 |
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Hint |
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3. |
Find the missing step in the explanation of a Think of a Number trick. |
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A. |
2n + 8 |
B. |
2n – 16 |
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C. |
n + 16 |
D. |
2n + 16 |
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Hint |
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4. |
If n is some odd number, how would you write the next three consecutive odd numbers? |
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A. |
n – 1, n, n + 1 |
B. |
n + 1, n + 3, n + 5 |
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C. |
n + 2, n + 4, n + 6 |
D. |
n + 1, n + 2, n + 3 |
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Hint |
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5. |
Find the sum of three consecutive numbers: n, the number that comes right before n, and the number that is 2 before n. |
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A. |
3(n – 1) |
B. |
3n + 3 |
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C. |
3n |
D. |
3n + 1 |
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Hint |
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