PARCC Exponent Practice Problems – Test 1

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1. 104 is not equal to which of the following?

Correct! Wrong!

1. A: 104=10.10.10.10, or 10,000.

2. Multiply 104 by 102

Correct! Wrong!

2. C: When multiplying terms with the same base, the exponents should be added. Thus, 104 . 102=106.

3. Divide x5 by x2

Correct! Wrong!

3. D: When dividing terms with the same base, the exponents should be subtracted. Thus, x5/x2 =x3.

4. Find 8.23 x 109

Correct! Wrong!

4. D: The decimal will be moved to the right 9 places. Thus 7 zeros will be added to the right of 823, giving 8,230,000,000.

5. 83,000 equals:

Correct! Wrong!

5. B: Moving the decimal to the right of the digit, 8, gives the equivalent expression, 8.3x104, since there are 4 digits to the right of the 8.

6. .00875 equals:

Correct! Wrong!

6. B: Moving the decimal to the right of the 8 gives 8.75x10-3, since the decimal must be moved 3 places to the right.

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