[" (a) "439+334+4317," (b) "1,08,734-47,599],[" (c) "8325-491," (d) "4,89,348-48,365]

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.

48. 95-32. 006=? (a) 16.089 (b) 16.35 (c) 16.89 (d) 16.944

Estimate the following by rounding off each number to its greatest place: (i) 1,08,734 - 47,599 (ii) 898 xx 785

|[2, 3, 7],[8,5,-4],[10,8,3]|= (A)242 (B)365 (C) 140 (D)0

Match the problems with the answers. (a) 128 xx 47 (b) 1.28 xx 4.7 (c) 12.8 xx 0.47 (d) 0.128 xx 4.7 (e) 6.016 (f) 6016 (g) 0.6016

Estimate the following by rounding off each number to its greatest place: 1, 08 , 734-47 , 599 (ii) 898\ x\ 785

Solve sqrt(7921)=?( a) 89( b) 87( c) 37 (d) 47

Solve 323.46+23.04-43.17-?=303 (a) 0.33 (b) 1.33 (c) 1.23 (d) 0.21 (e) 0.51