Is 70.21 = 7.210 ?

No.

... unless the dot (.) stands for multiplication:

7×210 = 70×21

To determine if 70.21 is equal to 7.210, we need to compare the two numbers. When comparing numbers, we need to consider both their value and their decimal places.

In this case, we have two numbers: 70.21 and 7.210.

First, let's check the values before the decimal point. The value of 70 is greater than 7, so we know that 70.21 is greater than 7.210.

If the values before the decimal point are equal, we need to compare the values after the decimal point. In this case, 21 is not equal to 210, so we can conclude that 70.21 is not equal to 7.210.

Therefore, the answer is no, 70.21 is not equal to 7.210.