Only formulas or equations are calculated, not calculated. (1) Xiaolan borrowed a story book. If she reads 12 pages every day, she can finish it in 15 days. If she reads 18 pages every day, she will r

Only formulas or equations are calculated, not calculated. (1) Xiaolan borrowed a story book. If she reads 12 pages every day, she can finish it in 15 days. If she reads 18 pages every day, she will read more. ( 1) 12× 15÷ 18

= 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.