DECIMAL STANDARD, EXPANDED, AND WORD FORM
Comparing and Ordering Decimals
Rounding Decimals
Add/Subtract Decimals
Add/Subtract Decimals
100
How do you write eight and one hundred thirty-eight thousandths in expanded form? 

(8 x 1) + (1 x 1/10) + ( 3 x 1/100) + (8 x 1/1000)

100

2.435____________2.56

2.435 < 2.56

100

What is eight and one hundred thirty-eight thousandths rounded to the nearest tenth?

8.1

100

5.05 + 4.95 =

10

100

Jonah bought a 1.7 liter bottle of water. He used 0.8 liter of seltzer in some punch. Which is greater, the amount he used or the amount he has left over?

1.7 - 0.8 = 0.9 the amount he has left over is greater.

200

How do you write 293.64 in expanded form?

(2 x 100) + ( 9 x 10) + (3 x 1) + ( 6 x 1/10) + ( 4 x 1/100)

200

True or False?

The value of 7 in 75 is 10 times the value of 7 in 7.5

True

200

The number 5.066 rounded to the nearest hundredth is ?

5.07

200

Sophie put up three bookshelves in her room. The top shelf is 3.88 feet long, the middle shelf is 2 feet long, and the bottom shelf is 4.569 feet long. What is the combined length of the three bookshelves?

10.449ft.

200

Sophie put up three bookshelves in her room. The top shelf is 3.88 feet long, the middle shelf is 2 feet long, and the bottom shelf is 4.569 feet long. How much longer is the bottom shelf than the middle shelf?

2.569ft longer.

300

What is the standard form of forty-two and nine hundred five thousandths?

42.905

300

0.057 _____________ 0.008

0.057 > 0.008

300

thirty-eight tenths _______________ 3.78

3.8 > 3.78

300

Two rock samples have masses of 56.24 grams and 8.98 grams. What is the estimated total mass if you round the decimals to the nearest tenth?

65

300

The northernmost and oldest pyramid of the group was built for Khufu (Greek: Cheops), the second king of the 4th dynasty. Called the Great Pyramid, it is the largest of the three, the length of each side at the base averaging 755.75 feet (230 meters) and its original height being 481.4 feet (147 meters). Write and solve an equation to find d, the difference in the heights of the length of each side at the base and its original height?

755.75ft - 481.4ft = d


d = 274.35

400

How would you write 3.003 in word form?

Three and three thousandths.

400

Jane created a list of a set of numbers that she rounded to the nearest hundredth and placed them in order from least to greatest. What was her list after she rounded her numbers?


5.025

5.079

5.103

5.117

5.066

5.108

5.07

5.08

5.10

5.11

400

<     >     =

4.802 rounded to the nearest tenth is ______ (4 x 1) + (7 x 1/10) + (8 x 1/100) + ( 2 x 1/1000) rounded to the nearest tenth

=

400

 Which decimal makes this equation true?


5.26 + __________ = 13.63

A. 7.37

B. 8.27

C. 8.37

D. 8.43

C. 8.37

400

 A rectangular yoga studio is 25.15 feet long and 13.62 feet wide. Find the exact perimeter. 

77.54 feet

500

<              >           =

five and sixty-nine thousandths ________5.69

<

500

True or False?

The value of 6 in 23.465 is 1/10 the value of the 6 in 17.64

True

500
When rounding to the nearest hundredth, 


which is <   >   = 


4.408 _____ four and forty-eight thousandths

>

500

Ricardo bought a pair of shoes for $55.60 and a hat for $9.78. How much did he spend in all? If he paid with 4 twenty- dollar bills, how much change did he get?

Total- $65.38

Change- $80.00 - $65.38 = $14.62 

500

Mr. Lee sold 8.6 pounds of apples, Ms. Perry sold 40.44 pounds of apples, Ms. Cleary sold 23.5 pounds of apples, and Mr. Jones sold 34.5 pounds of apples at the farmer’s market. Which two people sold the most apples? What is the difference between the amounts these people sold?

Ms. Perry and Mr. Jones. 5.94 pounds

40.44- 34.5 = 5.94