Pre-Algebra Examples

$2 \cdot 10^{- 2} \cdot 3.5 \cdot 10^{3}$

Step 1

Multiply $2$ by $3.5$ .

$7 (10^{- 2} \cdot 10^{3})$

Step 2

Multiply $10^{- 2}$ by $10^{3}$ by adding the exponents.

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Step 2.1

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$7 \cdot 10^{- 2 + 3}$

Step 2.2

Add $- 2$ and $3$ .

$7 \cdot 10^{1}$

Step 3

Simplify $10^{1}$ .

$7 \cdot 10$

Step 4

Multiply $7$ by $10$ .

$70$