The test

—coming soon—

Where to go next

This mixed review uses the methods from these learning pages:

• Rounding to the nearest ten, hundred or thousand
• Rounding to decimal places
• Rounding negative numbers
• Rounding to significant figures
• Zeros and significant figures
• Truncation
• When the context forces the direction
• Why a measurement is never exact
• Error intervals from rounding
• Error intervals from significant figures
• Error intervals from truncation
• Working back from an interval
• Bounds of discrete quantities
• Maximum error and percentage error
• Bounds in addition and subtraction
• Bounds in multiplication and division
• Bounds in compound measures
• Bounds in area, volume and Pythagoras
• Deciding from the worst case
• A suitable degree of accuracy from bounds