Pichora - First 2 Week Review

Scientific Notation

100

3 x 10⁷ =

30000000

200

2.3 x 10⁷ =

23000000

300

1.03 x 10⁵ =

103000

400

Convert to Sci.Notation

7,007,000,000

7.007 x 10⁹

500

1.08 x 10^-8

0.0000000108

Place Value

100

What position is the 7 in?

107,000,100

millions

200

What position is the 7 in? 

170,000,100,123

ten billions

300

What position is the 7 in? 

140,000,100,123.071

hundredths

400

What position is the 7 in? 

170,000,100,123.0007

ten thousandths

500

What position is the 7 in? 

170,000,100,123,000,000,000,000

ten septillion

Place Value

100

Write the following in expanded form:

3,124,001

300000 + 100000 + 20000 + 4000 + 1

200

Write the following in expanded form:

3,124.001

3000 + 100 + 20 + 4 + .001

300

Write the following in expanded form:

3,456,789,000

3000000000 + 400000000 + 50000000 + 6000000 + 700000 + 80000 + 9000

400

Order the following from least to greatest:

0.99 / 8.09 / 10.99 / 0.005 / 0.01 

0.005 - 0.01 - 0.99 - 8.09 - 10.99 

500

Order the following from least to greatest 

2.3 x 10¹⁰ / 555,555,555 / 99,999,999 / 8.01 x 10⁹ 

99,999,999 - 555,555,555 - 8.01 x 10^{9 -} 2.3 x 10¹⁰

Decimals

100

2.33 + 4.51 

   2.33

+4.51 

=6.84

200

3.05 - 1.5

  3.05

- 1.50 

 =1.55 

400

445.4 + 6.78 

   445.4 

+     6.78

= 452.18 

500

.0009 + .0009

0.0009

+.0009

=0.0018

Decimals

100

3.4 x 2.3 

   3.4

x 2.3

= 7.82  

200

4.4 x 5.5 

4.4 x 5.5 = 24.2

300

0.4)2000 

5000

400

1.2)2400

2000

500

128 / 0.4 

= 320