# Math Rounding By Grade 4.

## Presentation on theme: "Math Rounding By Grade 4."— Presentation transcript:

Use rounding When the question asks you to estimate.

Memorize this Poem Find your number. Look right next door.
4 or less, change to 0’s. 5 or more, add 1 more.

Round the number 5 871 to the nearest thousand.
Find your number. 5 871 Circle the number in the thousands place.

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

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.

Round the number 5 871 to the nearest thousand.
5 or more, add 1 more. 5 871 Add 1 to the 5.

. Round the number 5 871 to the nearest thousand.
5 or more, add 1 more. +1 5 871 Add 1 to the 5.

. 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.

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

Round the number 2 317 to the nearest thousand.
Find your number. 2 317 Circle the number in the thousands place.

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

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.

Round the number 2 317 to the nearest thousand
4 or less, just ignore. Change the numbers to right of 2 to 0’s.

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

Round the number 3 587 to the nearest hundred
Find your number. 3 587 Circle the number where the hundreds are.

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.

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.

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.

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.

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

Round this number to the nearest ten.
Find your number. 4 875 Circle the number in the tens place.

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.

Round the number 4 875 to the nearest ten.
5 is than greater than 4 so go to the next line of the poem.

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.

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

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

Now try some on your own:
6 218 rounded to the nearest ten is _ _ _ _

Now try some on your own:
6 218 rounded to the nearest ten is 6 220

Now try some on your own:
8 015 rounded to the nearest hundred is _ _ _ _

Now try some on your own:
8 015 rounded to the nearest hundred is 8 000

Now try some on your own:
2 495 rounded to the nearest thousand is _ _ _ _

Now try some on your own:
2 495 rounded to the nearest thousand is 2 000

Do these on paper now: Round to the nearest 1 000
5 789 3 411 6 230 974 6 899

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

Do these on paper now: Round to the nearest 100
5 789 3 411 6 230 974 6 899

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

Do these on paper now: Round to the nearest 10
5 789 3 411 6 230 974 6 899

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