Direction : What value should come in the place of question mark (?) in the following questions?

1798 ÷ 31 × ? = 348

Direction : What value should come in the place of question mark (?) in the following questions?

$$ \sqrt{8281} =(?) $$

Direction : What value should come in the place of question mark (?) in the following questions?

$$({144\over16}×{828\over 9})=?+325 $$

Direction : What value should come in the place of question mark (?) in the following questions?

190×38÷4=?

Direction : What value should come in the place of question mark (?) in the following questions?

$${210\over14}×{17\over15}×?=4096  $$

Direction : What value should come in the place of question mark (?) in the following questions?

23 × 45 ÷ 15=?

Direction : What value should come in the place of question mark (?) in the following questions?

3.6 + 36.6 +3.66+0.36+3.0=?

The smallest possible three - place decimal is: