When rounding, look at the number one place to the right of the place you are rounding to. If that number is <5, then you keep the place you are rounding to the same and fill in with 0's to the right. If the number is ≥5, then increase the place by one and fill in with 0's to the right. 109865 To the nearest 100: 109<u>8</u>65 --> 6 is ≥5, so rounded it is: 109900 To the nearest 1000: 10<u>9</u>865 --> 8 is ≥5, so rounded it is: 110000* * The 9 had to be rounded to a 10, so a one carries over one place to the left. To the nearest 10: 1098<u>6</u>5 --> 5 is ≥5, so rounded it is: 109870 To the nearest 10000: 1<u>0</u>9865 --> 9 is ≥5, so rounded it is: 110000