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Hebei mathematics problems
Double application problems in grade four

1. A, B and C balls. The sum of a and b is 58, and the sum of b and c is 30. The sum of the numbers a and c is 40. How many balls are there in A, B and C?

Xiaoming's average score in Chinese and mathematics is 98. The average score of math and English is 88. The average score of Chinese and English is 90. How much do you want for math, Chinese and English?

Party A and Party B each have some big stickers. Party A has 38 big stickers and Party B has 46 big stickers. How much does Party A give to Party B, and then Party B is twice as much as Party A's 6?

4. Party A and Party B each have some story books, 82 for Party A and 56 for Party B. After Party A gives Party B how many books, Party B has twice as many as Party A, and 6 more books?

5.A and B are ***49, and A is 4 times less than B 1. What are a and b?

6.A is 32 more than B, and A is 3 times more than B.. What are a and b?

7.A is 365,438+0 more than B, and A is three times less than B. What are a and b?

8. Poultry farms raised 4,600 chickens and ducks this year, four times more than ducks, at 100. How many chickens and ducks did the poultry farm raise this year?

9. Xiaoming and Xiao Liang go to the beach to pick up shells. Xiaoming picked up 40 shells and Xiao Liang picked up 85. How many shells does Xiaoming give Xiao Liang to let Xiao Liang pick up three times more shells than Xiaoming?

10 There are 324 1 cows and pigs in a livestock farm. Cattle are exported abroad, reducing by 40, and You Zhu buys 70, so the number of cows is twice that of pigs, which is 1. How many cows and pigs were there in the original livestock farm?

1. The school has a batch of saplings, which are given to several young pioneers for planting. They are decomposed one at a time, one at a time. Finally, 12 trees are not enough. If we bring eight more seedlings, then each young pioneer can plant 10 trees. There are () young pioneers involved in planting trees, and there are () original saplings. Xiaoming bought five pencils and eight erasers for one yuan. If he buys 1 pencil, he will get less than 2 points, and if he buys an eraser, he will get 1 more points, one point for each pencil and one point for each eraser. 3. Class 4 (1) students planted trees, each planted 1 tree, and there were 20 trees left, each planted 2 trees, with a difference of 30 trees. There are () students and () saplings. 4. Learn from Lei Feng's group to move bricks for the school. If everyone moves 18, there are 2 pieces left; If everyone moves 20 yuan, a classmate will have no bricks to move. A * * * has () bricks. The teacher distributed some apples to the children. If everyone gets one, there are eight apples left; If everyone gets two, there are still two apples missing. A * * * has () children. 6. Young Pioneers planted trees. If everyone plants 5 trees, there will be 13 trees left. If each person plants 7 trees, the difference is 2 1 tree. The young pioneers who participated in tree planting are (

Team A has 80 fewer people than Team B, and Team B has 2.5 times more people than Team A. How many people are there in each team?