Download presentation

Presentation is loading. Please wait.

1
Math Rounding By Grade 4

2
**Use rounding When the question asks you to estimate.**

To check your answer to see if you’ve made a mistake. When an exact answer isn’t possible. When the question asks “about how many”…?

3
**Memorize this Poem Find your number. Look right next door.**

4 or less, change to 0’s. 5 or more, add 1 more.

4
**Round the number 5 871 to the nearest thousand.**

Find your number. 5 871 Circle the number in the thousands place.

5
**Round the number 5 871 to the nearest thousand.**

Look right next door. 5 871 Draw an arrow to the right of the number.

6
**Round the number 5 871 to the nearest thousand.**

4 or less, change to 0’s. 5 871 8 is larger than 4 so go to the next line of the poem.

7
**Round the number 5 871 to the nearest thousand.**

5 or more, add 1 more. 5 871 Add 1 to the 5.

8
**. Round the number 5 871 to the nearest thousand.**

5 or more, add 1 more. +1 5 871 Add 1 to the 5.

9
**. Round the number 5 871 to the nearest thousand.**

5 or more, add 1 more. +1 6 000 Add 1 to the 5 ( to make 6) and all the numbers to the right of the 6 become 0’s.

10
The Answer 5 871 rounded to the nearest thousand is 6 000

11
**Round the number 2 317 to the nearest thousand.**

Find your number. 2 317 Circle the number in the thousands place.

12
**Round the number 2 317 to the nearest thousand.**

Look right next door. 2 317 Draw an arrow to the right of the number.

13
**Round the number 2 317 to the nearest thousand**

4 or less, change to 0’s. 2 317 Since 3 is less than 4, we ignore the 2 and change the rest to 0’s.

14
**Round the number 2 317 to the nearest thousand**

4 or less, just ignore. Change the numbers to right of 2 to 0’s.

15
The Answer 2 327 rounded to the nearest thousand is 2 000

16
**Round the number 3 587 to the nearest hundred**

Find your number. 3 587 Circle the number where the hundreds are.

17
**Round the number 3 587 to the nearest hundred**

Look right next door. 3 587 Draw an arrow to the right of the circled number.

18
**Round the number 3 587 to the nearest hundred**

4 or less, change to 0’s. 3 587 8 is greater than 4 so go to the next line of the poem.

19
**Round the number 3 587 to the nearest hundred.**

5 or more, add 1 more. +1 3 587 Since 8 is greater than 5, add 1 to the 5.

20
**Round the number 3 587 to the nearest hundred**

5 or more, add 1 more. 3 600 Change the 5 to a 6 and change all the numbers to the right to 0’s.

21
The Answer 3 587 rounded to the nearest hundred is 3 600

22
**Round this number to the nearest ten.**

Find your number. 4 875 Circle the number in the tens place.

23
**Round the number 4 875 to the nearest ten.**

Look right next door. 4 875 Draw an arrow to the right of the circled number.

24
**Round the number 4 875 to the nearest ten.**

5 is than greater than 4 so go to the next line of the poem.

25
**Round the number 4 875 to the nearest ten.**

5 or more, add 1 more. +1 4 875 Since 5 is equal to 5, add 1 to the 7.

26
**Round the number 4 875 to the nearest ten.**

5 or more, add 1 more. 4 880 Change the 7 to a 8 and make the rest 0’s

27
The Answer 4 875 rounded to the nearest ten is 4 880

28
**Now try some on your own:**

6 218 rounded to the nearest ten is _ _ _ _

29
**Now try some on your own:**

6 218 rounded to the nearest ten is 6 220

30
**Now try some on your own:**

8 015 rounded to the nearest hundred is _ _ _ _

31
**Now try some on your own:**

8 015 rounded to the nearest hundred is 8 000

32
**Now try some on your own:**

2 495 rounded to the nearest thousand is _ _ _ _

33
**Now try some on your own:**

2 495 rounded to the nearest thousand is 2 000

34
**Do these on paper now: Round to the nearest 1 000**

5 789 3 411 6 230 974 6 899

35
**Do these on paper now: Round to the nearest 1 000**

5 789 3 411 6 230 974 6 899 6 000 3 000 1 000 7 000

36
**Do these on paper now: Round to the nearest 100**

5 789 3 411 6 230 974 6 899

37
**Do these on paper now: Round to the nearest 100**

5 800 3 400 6 200 1 000 6 900 5 789 3 411 6 230 974 6 899

38
**Do these on paper now: Round to the nearest 10**

5 789 3 411 6 230 974 6 899

39
**Do these on paper now: Round to the nearest 10**

5 790 3 410 6 230 980 6 900 5 789 3 411 6 230 974 6 899

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google