Comparing and Rounding Numbers

Ordering, comparing and rounding four-digit numbers

​Example:

​We can use our knowledge of place value to compare and order numbers.

​Example: Let`s compare 6300 and 5539

​6300 is greater than 5539.

6300 > 5539

Multiple Choice

• smaller than

  <

• greater than

  >

• equal to

  =

Multiple Choice

• smaller than

  <

• greater than

  >

• equal to

  =

Multiple Choice

• smaller than

  <

• greater than

  >

• equal to

  =

Multiple Choice

Which of the following is the smallest number?

• 514

• 6,987

• 11,021

• 79

Multiple Choice

Which of the following is the greatest number?

• 5,914

• 987

• 10,021

• 729

Poll

Tick all the correct options below

• 55 < 59

• 753 > 2,501

• 8,045 = 8,054

• 1,423 > 1,408

• 7,911 < 7,921

Ordering numbers

​Examples:

Multiple Choice

Order the numbers from the smallest to the greatest.

• 3,455 < 5,453 < 4,535

• 4,535 < 3,455 < 5,453

• 3,455 < 4,535 < 5,453

Multiple Choice

Order the numbers from the greatest to the smallest.

• 9,906 > 9,760 > 6,997

• 9,760 > 9,906 > 6,997

• 6,997 > 9,760 > 9,906

​Rounding Numbers

​300

​Examples:

Multiple Choice

• 200

• 210

Multiple Choice

• 50

• 60

Multiple Choice

• 900

• 1,000

Multiple Choice

• 6,200

• 6,300

​STEP ONE: First, underline the digit in the place you are rounding to.

STEP TWO: Next, look at the digit to the right of the underlined digit.

STEP THREE:   If the digit is less than 5, round down.

If the digit is 5 or more, round up.

​How do we round numbers?

Example: What is 6275 rounded to the nearest 1000?

​

STEP ONE:  6,275

STEP TWO:  6,275

STEP THREE: The number 6,275 rounds down to 6,000

​

​Answer: 6,000

​How do we round numbers?

Multiple Choice

Round the number 578 to the nearest ten.

• 570

• 580

Multiple Choice

Round the number 816 to the nearest hundred.

• 800

• 900

Fill in the Blanks

Which number do you get when you round the number 37 to the nearest 10?

Fill in the Blanks

Which number do you get when you round the number 735 to the nearest 100?

Fill in the Blanks

Which number do you get when you round the number 2,948 to the nearest 1,000?