Multiplying Decimals

Multiples of 10

100

2.3 x 10

23

200

837 x 100

83 700

300

143.2 x 100

14 320

400

0.00596 x 1000

59.6

500

Person A has $0.97. Person B has 10 times more money than Person A. Person C has 100 times more money than Person B. How much money does Person C have?

$970.00

Decimals

100

500 x 0.1

50

200

8.96 x 0.01 

0.0896

300

23 x 0.001

0.023

400

0.4702 x 0.001

0.0004702

500

My sister drove 5739 x 0.01 km in one day. The following day she drove 0.001 times the amount from the day before. How far did she drive on the second day? 

0.05739 km

Scientific Notation

100

2 x 10²

200

200

7.63 x 10³

7630

300

0.04651 x 10⁴

465.1 

400

59.8 x 10⁶

59 800 000

500

The population of Town A is 4 x 10² and the population of Town B is 0.004 x 10⁴. What town has a greater population? 

Town A

Equalities

100

Use the symbol <, >, or = to make the statement true

7810 ____ 7.81 x 10²

>

200

Use the symbol <, >, or = to make the statement true

0.0243 ______ 24.3 x 0.01

< 

300

Use the symbol <, >, or = to make the statement true

870 000 _____ 8.7 x 10⁵

=

400

Use the symbol <, >, or = to make the statement true

0.00586 x 10² _____ 58.6 x 0.01

=

500

Use the symbol <, >, or = to make the statement true

34.6 x 0.0001 ____ 0.000345 x 10²

<

Other

100

True or False: 

When you multiply a number by 10 or 100, the number gets bigger. 

True

200

When you multiply a number by 0.1, 0.01, or 0.001, the number gets bigger. 

False 

300

When you multiply a number by 10⁵, the number gets smaller

False

400

When you multiply a decimal by 10³, the number gets smaller. 

False 

500

What is the correct term for this type of number: 3.4 x 10³? 

Scientific Notation