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Rounding Integers

Integers are rounded in exactly the same way as whole numbers are rounded, because negative sign (minus sign) doesn't influence process of rounding.

So, we just go through a couple of examples.

Example 1. Round -456 to the nearest ten.

Since last digit is greater or equal then 5 (it is 6), then we round up: 56 becomes 60.

Answer: -460.

Next example.

Example 2. Round -45678 to the nearest thousand.

Since last three digits (678) form a number that is greater then 500, then we round up: 5678 becomes 6000.

Answer: -46000.

Last example.

Example 3. Round -486 to the nearest hundred.

Since last two digits form a number that is greater than 50 (it is 86), then we round up.

Answer: -500.

Now, take a pen and paper and solve following problems.

Exercise 1. Round -156 to the nearest ten.

Answer: -160.

Next exercise.

Exercise 2. Round -456748 to the nearest ten.

Answer: -456750.

Next exercise.

Exercise 3. Round -13456 to the nearest hundred.

Answer: -13500.