45. if you get a calculator and hit the square root button (like a tick) and then key in 2025 = it should give you 45
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It is 99. 99*99 = 9801
10 10 x 10 = 100
what is the unit digit of the product if hundred 7"s r multiplied
9 x 9 = 81
Oh honey, that's a big number you got there! The product of 987654321 multiplied by 987654321 is 975461057789971041. So, there you have it, a whole lotta digits to wrap your head around. Hope you brought your calculator for that one!