Powers & Exponents

Exponents and Powers Worksheet-4

1. Which of the following is equivalent to 4.5 × 10⁵ ?

(a) 45,000                                      (b) 45,000,000

(c) 450,000                                   (d) 4,500

2. What would be the correct scientific notation for 0.033?

(a) 33 × 10^–2     (b) 3.3 × 10^–2      (c) 3.3 × 10²      (d) 3.3 × 10^–3

Exponents and Powers Worksheet-5

1. Write 0.00043 in scientific notation.

(a) 4.3 × 10^–5    (b) 4.3 × 10^–3    (c) 4.3 × 10^–4    (d) 43 × 10^–4

2. Which shows hundred-thousandth in correct scientific notation?

(a) 1 × 10⁵          (b) 1 × 10^–6        (c) 1 × 10^–4        (d) 1 × 10^–5

3. Average thickness of a human hair is 0.00015 m. Write this in scientific notation.

(a) 1.5 × 10^–4     (b) 1.5 × 10^–3    (c) 15 × 10^–4      (d) 1.5 × 10^–6

Exponents and Powers Worksheet-6

1. Simplify:

(a)               (b) 15                  (c)               (d)

2. Evaluate the Square root of 36.

(a) 5                    (b) 6                    (c) 3                    (d) 8