" (a) "quad 730+998

Estimate each of the following using general rule:(a) 730 + 998 (b) 796 – 314 (c) 12,904 +2,888 (d) 28,292 – 21,496Make ten more such examples of addition, subtraction and estimation of their outcome.

(i) quad (998)^(3)

Estimate each of the following using general rule: (a) 730+998 (b) 796314 (c) 12,904+2,888(d)28,29221,496 Make ten more such examples of addition,subtraction and estimation of their outcome.

At 25^(@)C and 730 mm pressure, 730 mL of dry oxygen was collected. If the temperature is kept constant what volume will oxygen gas occupy at 760 mm pressure?