" (a) "439+334+4,3174

Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate (by rounding off to nearest tens) : (a) 439 + 334 + 4,317 (b) 1,08,734 – 47,599 (c) 8325 – 491 (d) 4,89,348 – 48,365 Make four more such examples.

Give a rough estimate (by rounding off to nearest hundreds) and also a closer estimate(by rounding off to nearest tens) :(a) 439 + 334 + 4,317 (b) 1,08,734 – 47,599 (c) 8325 – 491(d) 4,89,348 – 48,365Make four more such examples.

Give arough estimate (by rounding off the nearest hundreds)and also a closer estimate(by rounding off to nearest tens), 439+334+4,317 .

Estimate the following by rounding off each number to its greatest place: 439\ +\ 334\ +\ 4, 317 (ii) 8, 325\ -\ 491

Estimate the following by rounding off each number to its greatest place: (i) 439\ +\ 334\ +\ 4, 317 (ii) 8, 325\ -\ 491

Number of formula units in unit cells of MgO (rock salt),ZnS (zinc blende) and Pt (fcc) respectively are 2,3,4 3,3,4 4,1,3 4,4,4

underset ?? 1 = 11.2 = 22.3 = 33.4 = 44.5 = 55 .... 11 =