TY  - BOOK
AU  - Prudente,Virgilio Y.
TI  - 25 math short cuts
U1  - 513.9 
PY  - 2014///]
CY  - Quezon City
PB  - VYP-MSC Solutions
KW  - Ready-reckoners
N1  - Addition by creating zeroes; All from 9 and the last from 10 subtraction; Subtraction without borrowing; Multiplying by 2; Doubling and halving together; Multiplying by 9; Diving by 5, 50, 0.5 etc; Multiplying by 5, 50, 5%, etc; Dividing by 9; Dividing by 4 and 8; Multiplying by 25, 250, and 125; Dividing by 25, 250, and 125; Squaring numbers ending in 5; Multiplying complementary numbers; Base multiplication : teens and other; Base multiplication : numbers below the base; Base multiplication : one number above and once number below the base; Squaring numbers near 50; Multiplying numbers with the same units; Multiplying numbers ending in 5; Multiplying number when their average is a multiple of 10; Squaring any number
ER  -