= 180÷ 18
= 10 (days)
Answer: 10 days.
(2)( 1053-72×4)÷9
=765÷9
=85 kg
A: It burns an average of 85 kilograms a day.
(3)( 120- 18)×2
= 102×2
=204 (sheets)
A: It turns out that two people have 204 cards.
(4)( 162+6)÷ 1.5
= 168÷ 1.5
=112km
A: The distance from Changzhou to Nanjing is112km.