1. 129+ 126+ 123+ 125+ 124+ 128+ 127+ 122+ 124+ 123
2.9999×2222+3333×3334
3. There are some numbers, arranged according to the law: 1+5, 3+9, 5+ 13, 7+ 17, 9+2 1 ....................................................................................
4. There are two granaries, warehouse A has 142 tons of grain, and warehouse B has 258 tons of grain. If the grain in warehouse B is three times that in warehouse A, how much grain should be transported from warehouse A to warehouse B?
5. There are two granaries, A and B. The grain stored in warehouse B is three times that of warehouse A, 500 kilograms are transported from warehouse A and 8500 kilograms are transported from warehouse B, and the weight of surplus grain in the two warehouses is equal. How many kilograms were originally stored in these two warehouses?
6. 9 cars and 18 carriages are used to transport a batch of goods, and the load of each car is equivalent to 3 times that of the carriage, so the car carries more 18 tons than the carriage. How many tons do you want to transport per car and car?
7. Li Ming has 50 RMB notes in 2 yuan and 5 yuan, with a total value of 208 yuan. What is the face value of RMB in 2 yuan and 5 yuan?
8. Xiaoming is 10 years old this year, and the sum of his parents' ages is 8 1 year old. How old was Xiao Ming when their average age was 34?
9. Xiao Liang typed an article. In the first five minutes, she only typed 65 words per minute. If she wants to type 80 words per minute in eight minutes after three minutes, how many words per minute will she type in three minutes?
10. My sister said to my brother, "When I was your age, you were only 5 years old." The younger brother said to his younger sister, "When I am as old as you, you will be 26 years old." How old are my brothers and sisters now?
1 1. Li not only raises chickens and rabbits *** 107, but rabbits are also famous for having 56 more legs than chickens. Please calculate, how many rabbits are there in Li Xiaoguang?
12.9 10 The students of Grade 3, Grade 4 and Grade 5 of Bohai Petroleum No.2 Primary School went for a spring outing, with 30 students in Grade 5 more than Grade 4 and 20 students in Grade 3 less than Grade 4. How many students are there in Grade Three, Grade Four and Grade Five respectively?