MENTAL MATHEMATICS
AGGARWAL, R.S
MENTAL MATHEMATICS - NEW DELHI S.CHAND'S & COMPANY 2000 - 107
Mental 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.
81-219-3145-2
SHORT STORY
001 / AGG/M
MENTAL MATHEMATICS - NEW DELHI S.CHAND'S & COMPANY 2000 - 107
Mental 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.
81-219-3145-2
SHORT STORY
001 / AGG/M