Two marks example problems III — task. Mathematics State Board, Class 7.

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1. Express

$729$ in exponential form.

Answer:

$729 =$

$3^6$
$9^3$
$3^9$

(Note: Select

$2$ choices if they are correct.)

2. Which is greater

$3^4$ or

$4^3$ ?

Answer:

$3^4$

$4^3$

3. Expand

$a^3b^2$ and

$a^2b^3$ . Are they equal?

Answer:

$a^3b^2$

$a^2b^3$

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