The difference between a and B is 18.9. If, move the decimal point of B one place to the left, it is exactly equal to A. A is (?), B is (?)

The difference between a and B is 18.9. If, move the decimal point of B one place to the left, it is exactly equal to A. A is (?), B is (?)

According to the meaning of the title, the number of a is 10 times that of B
10-1 times more than number b = 9 times
So the number B is: 18.9/9 = 2.1
1 × 10 = 21

The difference between a and B is 0.45. If the decimal point of a is moved one place to the left, it will be equal to B. how many are the two numbers? Find the answer

If the decimal point of a is moved one place to the left, it is equal to B, indicating that a is 10 times of B
B = 0.45 △ 10-1 = 0.05
A = 0.05 × 10 = 0.5

The difference between a and B is 18.9. If the decimal point of B is moved one place to the left, it is exactly the same as that of A______ The number B is______ ．

Let number a be x, then number B be 10x, from which we can get that 10x-x = 18.9 & nbsp; & nbsp; 9x = 18.9, & nbsp; & nbsp; & nbsp; X = 2.1; then number B is 2.1 × 10 = 21. So the answer is: 2.1, 21

The difference between a and B is 9.9. Move the decimal point of the addend one place to the left, which is exactly equal to B. how many are each of a and B?

A-B = 9.9 or B-A = 9.9
10 a = b
A-1.1 B = 11