Page 2 - Arithmetic

Contents
Arithmetic Concept Review ...........................................................................................................................2 Fractions, Decimals, H.C.F and L.C.M ......................................................................................................16 Fractions ..............................................................................................................................................16 HCF and LCM........................................................................................................................................16 Decimals...............................................................................................................................................20 Square Root, Cube Root and Exponents..................................................................................................27 Exponents ............................................................................................................................................27 Squares ................................................................................................................................................27 Cubes ...................................................................................................................................................27 Square root ..........................................................................................................................................27 Cube root .............................................................................................................................................28 Simplification ...............................................................................................................................................34 Order of operations .............................................................................................................................34 Modulus or Absolute value of a real number.....................................................................................34 Estimation ................................................................................................................................................35 Percentage ...............................................................................................................................................35 Ratio and Proportion ...............................................................................................................................42 Ratio .....................................................................................................................................................42 Proportion ............................................................................................................................................42 Rate ..........................................................................................................................................................45 Unit Rate ..............................................................................................................................................45 Pipe and Cisterns .................................................................................................................................45 Time and Distance ...............................................................................................................................46 Time and Work.....................................................................................................................................51 Number Line ............................................................................................................................................54 Number Sequence ...................................................................................................................................55 Special number sequences ..................................................................................................................55
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Arithmetic Concept