Activities

1. Identify the place value for each digit in the number 1,234.
   
   
2. Identify the place value of the 7 in the number 125,679.

3. Use the number line below to answer the questions:

1. Plot 6, 12, 34, 68 and 91 on the number line.
2. Round each number to the nearest 10. 
3. How can you see this on the number line?

4. Use the number line below to answer the questions:

1. Plot 119, 278, 428, 798 and 965 on the number line.
2. Round each number to the nearest 100. 
3. How can you see this on the number line?

5. Write two different numbers, that when rounded to the nearest 10 will be the same.
   
   
6. Write two different numbers, that when rounded to the nearest 100 will be the same.

Answer Key/Rubric

1. 1 – thousands
   2 – hundreds
   3 – tens
   4 – ones

2. Tens

3. 
   
   1. Points plotted on the line graph:

2. 6 rounds to 10
   12 rounds to 10
   34 rounds to 30
   68 rounds to 70
   91 rounds to 90

3. Answers may include, but are not limited to:

• I used the placement of the number on the number line to see which number it was closer to. 
• The number it was closer to on the number line, is what I rounded to.
• When rounding to the nearest 10, 5 is the halfway mark.  Anything under 5 was rounded down.  Anything at or above 5 was rounded up.

4. 
   
   1. Points plotted on the line graph:

2. 119 rounds to 100
   278 rounds to 300
   428 rounds to 400
   798 rounds to 800
   965 rounds to 1000

3. Answers may include, but are not limited to:

• I used the placement of the number on the number line to see which number it was closer to. 
• The number it was closer to on the number line, is what I rounded to.
• When rounding to the nearest 100, 50 is the halfway mark.  Anything under 50 was rounded down.  Anything at or above 50 was rounded up.

5. Answers will vary.

6. Answers will vary.