The result is that the basket exchange of 28 and 22 can make two cars have as many apples.
Analysis: This question examines the application of four operations. According to the meaning of the question, both cars are a basket of 26, and the figures are the same, so there is no need to compare them. The difference between the other two baskets needs to be calculated separately by two cars. You can use subtraction to find the number of trips, average them, and then find out the basket you want to change.
The problem solving process is as follows:
Solution: It's the same if 26 doesn't count.
30+28=58
22+24=46
58-46= 12
12÷2=6
It is necessary to find out the number with a difference of 6 between the two cars and exchange it with 28 and 22 with a difference of 6.
A: Exchanging baskets 28 and 22 can make two cars have the same number of apples.
Addition attribute:
From additive commutative law's associative law, it can be concluded that when several addends are added, the positions of addends can be exchanged at will; Or add a few addends first and then add them with other addends, and the sum remains the same. For example: 34+72+66+28 = (34+66)+(72+28) = 200.
Subtraction operation property
1, a number MINUS the sum of two numbers is equal to subtracting each addend in the sum from this number in turn.
2. A number minus the difference between two numbers is equal to this number minus the minuend in the difference first, and then minus it.
Subtract a number from the sum of several numbers. You can choose any addend to subtract this number and then add it to the rest of the addends.
4. If a number subtracts several numbers in succession, you can add all the subtractions first, and then subtract the sum of the subtractions from the minuend.