====== Measures and Accuracy ====== [[gcse_maths_types_of_number|Types of Number]] [[gcse_maths_calculations|Calculations]] [[gcse_maths_multiples_factors_and_prime_factors|Multiples, Factors and Prime Factors]] [[gcse_maths_lcm_and_hcf|LCM and HCF]] [[gcse_maths_fractions|Fractions]] [[gcse_maths_fractions_decimals_and_percentages|Fractions, Decimals and Percentages]] [[gcse_maths_fractions_and_recurring_decimals|Fractions and Recurring Decimals]] [[gcse_maths_percentages|Percentages]] [[gcse_maths_compound_growth_and_decay|Compound Growth and Decay]] [[gcse_maths_ratios|Ratios]] [[gcse_maths_rounding_numbers|Rounding Numbers]] [[gcse_maths_bounds|Bounds]] [[gcse_maths_standard_form|Standard Form]]
Number
====Specification==== **N13** use standard units of mass, length, time, money and other measures (including standard compound measures) using decimal quantities where appropriate **N14** estimate answers; check calculations using approximation and estimation, including answers obtained using technology **N15** round numbers and measures to an appropriate degree of accuracy (e.g. to a specified number of decimal places or significant figures); use inequality notation to specify simple error intervals due to truncation or rounding **N16** apply and interpret limits of accuracy, including upper and lower bounds