1. It is known that the distance between Party A and Party B is160km. A car has finished the whole journey from A to B. How far are these two cars from B?

2. An orchard, covering an area of 20 hectares, including 25 kinds of apple trees, 0/4 kinds of pear trees/kloc-,and the rest of the land is planted with citrus. How many hectares of oranges have been planted?

A shoe store bought 600 pairs of leather shoes. 15 of the total amount sold in the first week, and 38 of the total amount sold in the second week.

(1) What percentage of * * * is sold every two weeks?

(2) How many pairs are sold every two weeks?

(3) How many pairs are left?

The sixth grade students donated money for the children in the disaster area. Class 6/kloc-0 donated 500 yuan, class 62 donated 45% of class 6/kloc-0, and class 63 donated 98% of class 62. How much are the donations from Class Six and Class Three?

Unit 2:

80 kg is more than 50 kg (), more than ()%

50 kg is less than 80 kg (), ()% is less.

50 kg is ()% of 80 kg.

80kg is ()% of 50kg.

Unit 3:

1. The experimental primary school bought 200 bottles of ink for use. How many bottles of ink are left?

2. After the cost of Panasonic video recorder was reduced, the cost of each camera became 2250 yuan. How much did it cost?

3, a batch of goods, a car shipped alone 12 hours, b car shipped alone 12 hours. How small are the two cars together?

Have you finished this shipment?

The planned output value of a factory this year is 2.8 million, equivalent to last year, tens of thousands more than last year.

Yuan?