320 and 330
There are 32 tens in 324
It is 311.5 which is the number halfway between the two middle numbers.
The number between 940 and 950 two tens up would be 970. If you add two tens (20) to 950, you reach 970, which is the next multiple of ten after 950.
330 and 340.
20 and 30
320
50
What is the value of 2 on 321
324 to the power of two is equal to 104,976. This is calculated by multiplying 324 by itself, which results in 104,976. In mathematical notation, it can be written as 324^2 = 104,976.
70.21
75
It is not possible to give a sensible answer to the question. It mentions "these two tens" and then fails to list any tens. It would be useful if you could be bothered to check your questions for completeness before posting them.