Working with Decimals

Standard Form and Expanded Form

100

What is the standard form of (9 X 10) + (2 X 1) + (4 X 1/10) + (2 x 1/100)

92.42

200

Change to standard form: (1x10) + (4x1) + (8x1/10) + (5X1/100)

14.85

300

Write 196.428 in expanded form. 

(1x100) + (9x10) + (6x1) + (4x1/10) + (2x1/100) + (8x1/1000)

400

What is 17.98 in expanded form?

(1x10) + (7x1) + (9x1/10) + (8x1/100)

500

What is (6x100) + (9x10) + (2x1) + (1x1/10) + (3x1/1000) in standard form?

692.103

Comparing Decimals

100

Which is greater 10.4999 or 10.6?

10.6

200

Complete and write the sentence: 67.499 ___ 67.5399

67.499 < 67.5399

300

Complete and write the sentence: 5.098 __ 5.109

5.098 < 5.109

400

Fill in the blank: 94.6 is ____ than 94.061. 

greater

500

Complete and write the sentence: 4.2091 ____ 4.20912

4.2091 < 4.20912

Ordering Decimals

100

Order the following least to greatest: 57.409, 57.097, 56.999

56.999, 57.097, 56.999

200

Order from greatest to least: 6.071 , 6.10, 6.09. 

6.10, 6.09, 6.071

300

Order the following greatest to least: 4.21, 4.126, 8.9

8.9, 4.21, 4.126

400

Order from least to greatest: 4.5, 4.55, 4.545

4.5, 4.545, 4.55

500

Order greatest to least: 2.9, 2.09. 2.19

2.9, 2.19, 2.09

Random

100

Name the two forms we wrote decimals in today. 

Standard and Expanded Form

200

Which digit is the hundreds place?1,679.8790

6

300

Name two places where we might use decimals in everyday life.  

_{Money, weight, averages, time (etc.)}

400

What are 3 symbols we can use to compare decimals?

<,>,=

500

What is one of our essential questions?

1. How does your knowledge of place value help you to write decimals in standard and expanded form?

2. How does your knowledge of place value help you to compare decimals?