Exponents
Expanded Form
Decimals to the Thousandths
Comparing Decimals
Rounding Decimals
100

In 103, 10 is called the ______________ and 3 is called the _______________

10 is called the base number and 3 is called the exponent

100

Write 234,567 in expanded form (without exponents)

200,000 + 30,000 + 4,000 + 500 + 60 + 7

100

What is the word form of this decimal:

0.8

Bonus: what is an equivalent decimal?

eight tenths

Bonus: 0.80 or 0.800 or 0.8000 etc...

100

12.345 or 13.345

13.345

100

Round 1.39 to the nearest tenth 

(remember to drop all digits after the rounding digit)

1.4

200

When the base number is 10, the exponent tells us the number of zeros in the product.

103= ______________

104= __________

105= __________

103= 1000 (3 zeros)

104= 10,000 (4 zeros)

105= 100,000 (5 zeros)

200

Write 123 in expanded form without exponents

100 + 20 + 3

200

What place is the three in?

0.034

Hundredths place

200

2.037 or 2.37

2.37

200

Round 16.892 to the nearest hundredth

Bonus: to the nearest tenth?

16.89

Bonus: 16.9

300
105 = 

10 x 10 x 10 x 10 x 10

100,000

One hundred thousand

300

Write 200,000 + 300 + 50 + 7 in word form

two hundred thousand, three hundred and fifty seven

300

Write 0.137 in expanded form with fractions

(1/10) + (3/100) + (7/1000)

300

3.099 or 3.111

3.111

300

Round 134.37 to the nearest whole number

134

400

(7 x 106) = 

7 x 1,000,000

7,000,000

7 million

400

Write the standard form of (2 x 103) + (4 x 102) + (7 x 10) + 3


2,473

(word form: two thousand four hundred seventy three)

400

Write 13.037 in expanded form with decimals

10 + 3 + 0.03 + 0.007

400

Write 2 equivalent decimals for 0.9 (nine tenths)

Bonus: Write 2 equivalent fractions for 0.9

0.90 (ninety hundredths)

0.900 (nine hundred thousandths)

Bonus: (9/10) or (90/100) or (900/1000)

400

Ms. Sieber is buying a candy bar for $5.75 is $5.75 closer to $5 or $6? Explain

It is closer to $6

$5.75 is only 25 cents away from $6 but it is 75 cents away from $5.00

500

(7 x 106) + (3 x 105) + (2 x 102) + 3

7,000,000+ 300,000 + 200 + 3

7,300,203

7 million three hundred thousand two hundred and three

500

Write the expanded form of 79,832 using exponents

Start with expanded form: 70,000 + 9,000 + 800 + 30 + 2

Then replace with exponents: (7 x 104) + (9 x 103) + (8 x 102) + (3 x 101) + 2

or

(7 x 104) + (9 x 103) + (8 x 102) + (3 x 10) + 2

500

Write 100 + 50 + 7 + 0.9 + 0.008 in standard form

157.908


500

Explain why is 13.0001 greater than 3.9999?

13 is greater than 3

500

Round 16.819 to the nearest tenth

16.8