P 16 question 3: horizontal dimensions, etc.

P 16 question 4: 3/5 divided by 9/25 equals 5/3 minutes.

P 16 Question 5: 7/30 divided by1415 equals 1/4 liters 14/ 15 divided by 7/30 equals 4 kilometers.

The following: 10 divided by 2/3 equals 45/2.

P 17 lane 2: small size and large size in transverse direction.

P 17 three lanes: (1): the back except the front (2) the front except the back.

P 17 lane 4: the back except the front.

P 17 fifth lane: 3/8 divided by 2, 4/5 divided by itself.

P 17 next line: front except back.

Next line: 12 divided by 1/3 divided by 3/5 divided by 12.

Okay, shit, not without adoption! ! !

Anxiety//////////////////