Question

In standard form $21600000$ is written as___________.

• A. $2.16\times {10}^7$
• B. $216\times {10}^7$
• C. $2.16\times {10}^5$
• D. $216\times 100000$

Answer 1

The correct option is A

$2.16\times {10}^7$

$216000000=2.16\times 10000000$
$\text{Therefore, in standard form}21600000\text{is written as :}2.16\times {10}^7$