Fractions to Decimals
Decimals to Fractions
Multiplying by 10's and 100's
Dividing by 10's and 100's
Scientific Notation
Vocabulary
Multiplying Decimal Numbers
100

What is  4/10  as a decimal?

0.4

100

What is .5 as a fraction? You don't need to simplify

5/10

100

What is 1.4 x 100

140

100

45 div 10

4.5

100

3.5 times10^2

350

100

Which digit in this decimal number is in the 10ths place?

2.45

4

100

What is 1.3 x 2?

2.6

200

What is  75/100 as a decimal?

0.75

200

What is .04 as a fraction?

4/100

200

What is .0004 x 10

0.004

200

5642 div 10

654.2

200

4,800 using scientific notation

4.8 times 10^3

200

Which digit in this decimal number is in the 10s place?

15.32

1

200

What is 7 x 2.6

18.2

300

What is  5/100  as a decimal?

0.05

300

What is .25 as a fraction? You do need to simplify

1/4

300

What is 1.356 x 100

135.6
300

.067 div 10

0.0067

300

6,700,000

6.7 times10^6

300

True or False: If you multiply a whole number by a decimal number you get an answer that is less than the original whole number

Example

Is 5 x .9 less than 5?

True!

300

What is 0.7 x 0.3?

0.21

400

What is  3 1/2 as a decimal?

3.5

400

What is 1.5 as a fraction?

1 1/2 or 3/2

400

What is .005 x 100

5

400

1290 div 1000

1.290

400
True or False: In scientific notation the first number needs to be between 1-10

Yes

400

True or False: The following number is in scientific notation.... (if false, why not?)

12.4 times 10^4

False! The first number is not between 1-10

400

What is 6 x 7.7?

46.2

500

What is  2 1/4 as a decimal?

2.25

500

What is .75 as a fraction? You do need to simplify

3/4

500

What is .0003476 x 1000

0.3476

500

.0957 div 100

0.000957

500

8.976 times10^5

897,600

500

True or False: When you see a negative exponent in scientific notation you are dividing instead of multiplying

True!

500

What is 4.56 x 5.6?

25.536

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