1. The sum of two numbers is 6 16, and the last digit of a number is 0. If you delete 0, it will be the same as another number. What are these two numbers?

Xiaoming's father's salary is twice that of his mother. His father spent 180 yuan to buy a bicycle, which is exactly half of Xiaoming's parents' combined salary. What is Xiao Ming's father's monthly salary?

3. The number of kilograms of sugar divided by the number of kilograms of brown sugar in the grocery store is exactly 3, and the number of kilograms of sugar plus the number of kilograms of brown sugar plus the quotient is 163. How many kilograms of white sugar and brown sugar do you want?

4. Yuxin Primary School has 120 short skipping ropes, and the number of short skipping ropes is three times that of long skipping ropes. How many lengths does skipping rope have?

These two warehouses store several tons of grain. It is understood that big warehouse stores 496 tons more grain than small warehouses, and big warehouse's grain is three times that of small warehouses. How many tons do you want to store in each warehouse?

6. The rice stored in warehouse A is three times as much as that in warehouse B, and 8500 kilograms are shipped from warehouse A, and after 500 kilograms are shipped from warehouse B, the remaining kilograms of rice in the two warehouses are equal. How many kilograms of raw rice does each warehouse need?

7. There used to be 45 more male workers than female workers in a workshop. If five male workers are transferred, the number of male workers is exactly three times that of female workers. How many male workers do you want?

8. Two wires with the same length, the first one needs 46m, and the second one needs19m. As a result, the second one has four times as many meters left as the first one. How many meters were the two wires?

9. Two numbers, A and B, if A plus 50 equals B, if B plus 350 equals 3 times A ... What are the numbers A and B?

10. Shengli primary school held the winter sports meeting. The number of people skipping rope is four times that of kicking shuttlecock, and 72 people are more than kicking shuttlecock. How many people took part in skipping rope and kicking shuttlecock?

1 1. The production team planted a batch of walnut trees and mangroves on the hillside. The number of walnut trees is more than 95 times that of mangrove trees, and there are more known walnut trees than 1455. How many trees have been planted in these two kinds of trees?

Thinking about the problem:

1. There is a string of black and white beads (as shown below). How many white beads are there in front of the100th black bead?

The express train from Chengdu to Nanjing stops at 9 stations. How many different fares are there?

3.9 people attend the meeting, if everyone wants to shake hands with the people attending the meeting. How many times do you have to shake hands with people attending the meeting?