39 tens is 390.
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There are 39 tens in 390. 390/10 = 39
39 tens.
4 tens + 9 ones 3 tens + 19 ones 2 tens + 29 ones 1 ten + 39 ones 49 ones.
Oh, dude, like, seriously? There are 390 tens in 3900. I mean, it's not rocket science, but yeah, that's the deal.
The product of 39 multiplied by 39 is 1521. This can be calculated by multiplying the tens place of each number (3 x 3 = 9) to get the hundreds place of the result, and then multiplying each number by the other number's digits and adding them together (3 x 9 = 27) to get the tens and ones place of the result. Therefore, 39 x 39 = 1521.