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SAT® Subject Test in Chemistry

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Difficult

Multiplication: Scientific Notation

SATCHM-3KEJFV

Which choice shows the answer to the following mathematical operation with the correct number of significant figures?

$$(1.23×10^{23}) \times (3×10^{14}) = 3.69×10^{37}$$

A

$4×10^{37}$

B

$3.69×10^{37}$

C

$3.7×10^{37}$

D

$3.69×10^{40}$

E

$3.7×10^{40}$