Decimal Unit

Which number line shows two decimal numbers that both round to 4.7 when rounded to the nearest tenth?

• 4.63 and 4.68

• 4.67 and 4.72

• 4.70 and 4.75

• 4.74 and 4.79

Which of these shows how to find 2.8 - 0.03?

• Option A

• Option B

• Option C

• Option D

Which shows the numbers in order from least to greatest?

• 0.53, 0.55, 3.55, 5.35

• 0.53, 0.55, 5.35, 3.55

• 0.55, 0.53, 3.55, 5.35

• 5.35, 3.55, 0.55, 0.53

Which of these is a correct explanation for the difference of 5.2 − 0.95?

• 5.2 is 52 tenths and 0.95 is 95 hundredths. 95 − 52 = 43. The difference of 5.2 − 0.95 is 43 tenths, or 4.3.

• 5.2 is 520 tenths and 0.95 is 95 tenths. 520 − 95 = 425. The difference of 5.2 − 0.95 is 425 tenths, or 4.25.

• 5.2 is 52 hundredths and 0.95 is 95 hundredths. 95 − 52 = 43. The difference of 5.2 − 0.95 is 43 hundredths, or 0.43.

• 5.2 is 520 hundredths and 0.95 is 95 hundredths. 520 − 95 = 425. The difference of 5.2 − 0.95 is 425 hundredths, or 4.25.

Solve the word problem: If a pencil costs 0.425 and you buy 4 pencils, how much do you spend in total?

• 1.7

• 1.75

• 1.8

• 2.0

How much will the boys spend on dinner?

• $20.71

• $23.90

• $26.00

• $41.50

Which statement explains the comparison 18.209 > 18.21?

• The comparison is correct, because the whole number digits are equal and 209 is greater than 21.

• The comparison is incorrect, because the number with the least numbers to the right of the decimal has the greater value.

• The comparison is correct, because 18.209 has three numbers to the right of the decimal and 18.21 only has two numbers to the right of the decimal.

• The comparison is incorrect, because the numbers are compared using the digits in the hundredths place since the whole number digits are equal, and the tenths place digits are equal.

Which equation BEST describes the model?

• 0.2 = □

• 1.8 = □

• 0.2 = □

• 0.8 = □

Christina grew so much over the summer that she needed a new wardrobe for school. She picked out $175.28 worth of clothing from the store. If she paid with 2 one hundred dollar bills, how much change should she receive?

• $24.72

• $75.28

• $135.82

• $375.28

Twin Rivers Elementary is having a fundraiser. The school will use all of the money collected to buy school supplies. Mrs. Smith’s class raised $3.78. Mr. Johnson’s class raised $2.46, and then Joey brought in $0.25 more. Miss Brenton’s class collected $2.47, and Mrs. Plimpton’s class raised $0.20 more than Miss Brenton’s class. Which shows the classes in order from greatest amount collected to the least amount collected?

• Smith, Johnson, Plimpton, Brenton

• Johnson, Smith, Brenton, Plimpton

• Smith, Brenton, Johnson, Plimpton

• Brenton, Plimpton, Johnson, Smith