We need to round 2,142 to the nearest hundreds. 1 is in the hundreds place.
Then look at the number on the right side of 1. It is 4. Because it lower than 5, the 1 stays the same and every number the right side turns to 0's.
2,100 is the answer.
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there are 226.796 grams in 8 ounces
Basically anything greater than zero...k>0
4x10^7 The number of zeros the given number has would be the exponent