Read, Write, Compare, and Round Decimals

Charlotte ran a mile in 8.456 minutes.  Mary ran a mile in 8.46 minutes.  Who finished the mile first, and why?

• Charlotte finished first because 8.456 < 8.46

• Charlotte finished first because 8.456 > 8.46

• Mary finished first because 8.46 < 8.456

• Mary finished first because 8.46 > 8.456

Tags

CCSS.5.NBT.A.3B

Mrs. Jones writes a number on the board and asks her students to express the number in expanded form.  Four student’s responses are shown below. 

   15.309

Student Expanded Form

Lucy (15 x 10) + (3 x 1) + (9 x 1/100)

Greg (1 x 10) + (5 x 1) + (3 x 1/10) + (9 x 1/1000)

Bob (1 x 10) + (5 x 1) + (3 x 1/1) + (9 x 1/100)

June (15 x 10) + (3 x 1/10) + (9 x 1/1000)

Which student correctly expresses the number in expanded form?

• Lucy

• Greg

• Bob

• June

Tags

CCSS.5.NBT.A.3A

Which statement correctly compares the numbers 2.323 and 2.33?

• 2.323 = 2.33 because both have the same digit in the ones place

• 2.323 = 2.33 because both have the same digit in the tenths place

• 2.323 > 2.33 because 323 thousandths is greater than 33 hundredths

• 2.323 < 2.33 because 330 thousandths is greater than 323 thousandths

Tags

CCSS.5.NBT.A.3B

Which number is forty-eight and eight hundred sixty-three thousandths written in standard form?

• 48.063

• 48.863

• 408.863

• 488.063

Tags

CCSS.5.NBT.A.3A

Fill in the blanks to complete the expanded form of 356.09.

3 x ________ + 5 x ________ + 6 x ________ + 9 x ________

• (3 x 100) + (5 x 1) + (6 x 1/10) + (9 x 1/1000)

• (3 x 100) + (5 x 10) + (6 x 1) + (9 x 1/100)

• (3 x 100) + (5 x 1) + (6 x 1/100) + (9 x 1/1000)

• (3 x 100) + (5 x 10) + (6 x 1) + (9 x 1/10)

Tags

CCSS.5.NBT.A.3A

Which statement is true?

• 3. 087 > 3.807

• 4. 010 < 4.100

• 50.00 = 0.500

• 6.891 > 6.891

Tags

CCSS.4.NF.C.7

What is forty-eight and eight hundred sixty-two thousandths written in standard form?

• 4.862

• 48.862

• 488.062

• 488.62

Tags

CCSS.5.NBT.A.3A

Guy and Caroline are racing to see who can tie their shoes the fastest.  They use a stopwatch to record their times.  Guy ties his shoes in 7.681 seconds, and Caroline ties her shoes in 7.679 seconds.  

Choose the correct choice to complete the sentence. 

Caroline ties her shoes the fastest because 7.679 (<, >, =) 7.681.

• <

• =

• >

Tags

CCSS.5.NBT.A.3B

Emily is timing herself to see how long it takes to button her shirt.  Emily’s first attempt takes 15.48 seconds.  After four more attempts, Emily finally buttons her shirt faster than the first attempt.

Which could be the attempt in which Emily buttons her shirt faster than 15.48 seconds?

• 15.387 seconds

• 15.49 seconds

• 15.5 seconds

• 15.501 seconds

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Which number can be used to make the comparison true?

8.57 > _________

• 8.77

• 8.56

• 8.60

• 8.75

Tags

CCSS.4.NF.C.7