IB skill practice

Use scientific notation accurately Free

Operate with numbers in standard form, convert compound units, and compare quantities by orders of magnitude.

Paper 1 4 marks Difficulty 4 No calculator

Normalise a compound standard-form calculation

Calculate \(\dfrac{(4.5\times10^{ 7 })(6\times10^{ -5 })}{ 9\times10^{ 1 }}\), giving the exact result in standard form \(A\times10^N\). State \(A\) and \(N\).

Worked practice: write standard form

Combine ordinary-number factors and powers of ten separately, then normalise the coefficient.