2.46 students went boating, and * * * took a 10 boat, including 6 big boats and 4 small boats. How many ships do you need? How many ships do you need?
3. Think of a two-digit number and divide the product of it and 12 by the sum of it and 12.
4. Saw a wooden stick with a length of 10 meter, and it takes 2 minutes to saw each section. If this stick is sawed into five equal parts, how many minutes will it take to make it?
The sum of two numbers is 94. When Xiao Ming calculated, he missed 0 in one digit, and the calculated sum was 3 1. What are these two numbers?
6. Twenty young pioneers collected160kg of apples. If each basket contains 20 kilograms, there are still two baskets missing. How many baskets are there?
7. The sum of dividend, divisor and quotient is 254, and the known quotient is 4. What are the dividend and divisor respectively?
8. 808 students from the whole school went for a spring outing in six cars. The first car has been picked up 128 people. If the other five cars have the same number of passengers as the first car, how many students are in the last car?
9. A teacher took 276 students to the park to rent a boat, with a maximum of 50 people in a big boat and 30 people in a small boat. What is the most economical way to rent a house?
10, the known large number is four times the decimal number, and the difference between these two numbers is 39, so what are these two numbers respectively?
1 1, 2 100 minus 50 plus 20, this is called operation. After several operations, the result is 0?
12. A snail climbed up at the bottom of the well at a depth of 12 meters. If you climb 3 meters per hour, you will slide down 2 meters. How many hours does it take for this cow to climb out of the wellhead?
13, with a string of colored beads arranged in the order of "2 red, 3 green and 4 yellow". What color is the 600th one?
The included angle between 14 and 30 degrees is 150 degrees under a five-fold magnifying glass. Do you think this sentence is correct? Why?
15, Tintin is a little careless. When he calculated the division, he wrote the divisor 65 as 56, and the quotient obtained was 18 more than 32. What is the correct quotient?
16, dividend is 450 greater than divisor, and quotient is 16. What is the dividend?
17, building a, Xiaoming lives on the sixth floor, Xiaojun lives on the fourth floor, Xiaojun has to climb 48 steps to go home, and how many steps does Xiaoming have to climb to go home?
18, seven years ago, my mother was six times older than my son. My son is 12 years old. How old is my mother?
19. Saw a wooden stick with a length of 10 meter. It takes 2 minutes to saw each section. If this stick is sawed into five equal parts, how many minutes will it take to make it?
20. The sum of dividend, divisor, quotient and remainder is 183, quotient 3 and remainder 4. What might be the divisor?
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