## Rounding To The Nearest Tens or Hundreds (In Words)

#### Aligned To Common Core Standard:

**Grade 3 Base Ten** - 3.NBT.1

**How to Round to The Nearest Tens or Hundreds** -
Rounding number is one of the most common athematic processes which is carried out by individuals on a daily basis mostly. A rounded number has more or less the same value as the actual value, but it is not the exact number. For example, when 341 is rounded to the nearest hundred, you get 300. The reason being 341 is closer to 300 than it is to 400.
Here are some rules to follow while rounding off a number.
- If the number being rounded off is followed by 5, 6, 7, 8, or 9. Example: when 38 is rounded off to the nearest 10, the answer will be 40.
- If the number being rounded off is followed by 0, 1, 2, 3, or 4, the number will be rounded down. For example, 33 rounded off to the nearest 10 will be 30.
Before rounding off, you first need to know what you intend to round up to. Numbers can be rounded up to the nearest ten, hundred, thousands, and so on. Consider the number 4,827:
- When rounded to the nearest ten the answer will be 4830
- When rounded to the nearest hundred the answer will be 4800
- When rounded to the nearest thousand the answer will be 5000
These worksheets start by showing students how to round to the tens place and then advances to the hundreds place.

### Printable Worksheets And Lessons

- Rounding to 100s Step-by-step Lesson- We walk through rounding a three digit number to the nearest hundreds place.

- Guided Lesson - No, I didn't lose my mind on this one. I mixed up the use of words and numbers. This is done often on tests.

- Guided Lesson Explanation - I find that the highlighting is key for kids to really understand the problem.

- Practice Worksheet - These all follow the same format to get the kids into a rhythm of sorts.

- Matching Worksheet - A nice finishing exercise or it can also be used as a warm up.

#### Homework Sheets

Use the block or tape diagram to help you along with these.

- Homework 1- This mean that we need to look at the ones column, if it is 5 or greater we round up, otherwise we round the tens place down. 5 is at the ones place, so we round the tens place up to. The final answer is 20.
- Homework 2- Round 279 to the nearest hundreds place.
- Homework 3- Round the values to their nearest underlined place value.

#### Practice Worksheets

We use words, place value charts and diagrams here.

- Practice 1- What is 589 rounded to the nearest hundred?
- Practice 2- Fill in the ones, tens, hundreds based on the numbers given. Round each number to the nearest tens and hundreds place.
- Practice 3- Round to the nearest hundreds place.