UK Secondary (7-11)
Scientific notation calculations using index laws

## Interactive practice questions

Use standard form to complete the expression.

$1\times10^{-2}\times2\times10^{-5}$1×102×2×105 $=$= $2\times\editable{}$2×

Easy
Less than a minute
Use index laws to simplify $3\times10^5\times7\times10^2$3×105×7×102. Give your answer in standard form.
Evaluate $\left(4.3\times10^{13}\right)\times\left(1.3\times10^{-6}\right)$(4.3×1013)×(1.3×106), expressing your answer in standard form form.
Evaluate $\left(5.2\times10^{20}\right)\times\left(9.6\times10^{12}\right)$(5.2×1020)×(9.6×1012), expressing your answer in standard form form.