My sheep is exactly twice as big as yours. "B said to A," This is better.
Give me your sheep 1, so that the number of your sheep and mine will be equal. "
Excuse me, A has () sheep and B has () sheep.
Analysis: You can start with what B said. He said, why don't you give me your sheep 1, that is to say, A has two more than B. For example, A has five, so B plus is one given by A, which is equal to the number of A at this time, so there are four at this time, so B has 4- 1=3, which is 5-3=2 (unique) different from the original A.
Now from A, give me your sheep 1.
My sheep is exactly twice as big as yours. In this case, continuing the above assumption, B gives A 1, B has 3- 1=2, A has 5+ 1=6, that is, when B gives A 1, there is a difference of 2. Just do it according to the number of copies!
Steps: ① 1+ 1=2.
② 1+ 1=2.
③ 2+2=4
④ 2- 1= 1 serving.
⑤ 4÷ 1=4
⑥ 4× 2 = 8-Now there is only a number.
⑦ 4×1= 4-now there is only the number of B.
8-1= 7-a original.
Pet-name ruby 4+1= 5-original B.
A: ...