The answer depends on the extent of rounding. To the nearest whole number, it is 12400. To the nearest million, it is zero.
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Well, isn't that a happy little number! When we round 12400 up, we see that the 4 tells the 2 to stay the same, and the 1 becomes a 2, so 12400 rounded up is 12400. Just like adding a touch of paint to bring out the beauty in a landscape, rounding up can help us simplify numbers and make them easier to work with.
Oh, dude, 12400 rounded up is like 13000. You know, you just gotta bump that last digit up to the next highest number. It's like giving a little boost to your math skills, man.
10000
12400
1.24 × 104
It depends on rounded up to what degree. Rounded up to the nearest ten, it is 0.
1.24*104 = 12400