Answer:
Explanation: To round to the nearest one, tenth or hundredth, you first draw a line through 3 and 9
/ = Line
129./392
Now check the number on the right if the number is higher than 4. Therefore, the number will be greater.
If the number is lower than 5. Therefore, the number will be less.
In this question, since 3 is less than 5 the answer will be 129
129.3/92
Now check the number on the right if the number is higher than 4. Therefore, the number will be greater.
If the number is lower than 5. Therefore, the number will be less.
In this question, since 9 is greater than 5 the answer will be 129.4
129.39/2
Now check the number on the right if the number is higher than 4. Therefore, the number will be greater.
If the number is lower than 5. Therefore, the number will be less.
In this question, since 2 is less than 9 the answer will be 129.39
These instructions will also be used for any units in decimals.