Question

detail
what is approximation? write down the rules for rounding off. ​

Answer 1

Answer:

a thing that is similar to something else, but is not exactly the same.

Explanation:

how to round off

In rounding off numbers, the last figure kept should be unchanged if the first figure dropped is less than 5. For example, if only one decimal is to be kept, then 6.422 becomes 6.4. CASE B: In rounding off numbers, the last figure kept should be increased by 1 if the first figure dropped is greater than 5.

Answer 2

Answer:

a number, answer, etc. which is nearly, but not exactly, right

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 33 rounded to the nearest ten is 30.