Given that $1$1÷$10$10 = $1\times\frac{1}{10}=1\times10^{-1}$1×110=1×10−1,

Express $7$7÷$10^2$102 in scientific notation form.

If we round to $1$1 significant figure, sound travels at a speed of approximately $0.3$0.3 kilometres per second, while light travels at a speed of approximately $300000$300000 kilometres per second.

Outcomes

NA5-6

Know and apply standard form, significant figures, rounding, and decimal place value