000			00568nam a22001457a 4500
020			_a81-8385-284-X
082			_a001 _bDHI/M
100			_aDHIMAN, SANJAY
245			_aMENTAL MATHS
260			_aNOIDA _bBRIJBASI ART PRESS LIMITED _c2006
300			_a20
520			_aMental math is a group of skills that allow people to do math “in their head” without using pencil and paper or a calculator. One of these skills is remembering math facts, like 8 × 5 = 40. Other skills include rounding numbers and estimating calculations.
650			_aREFERENCE
942			_cBK
999			_c6665 _d6665