Scientific Notation Concepts and Applications

Scientific notation is primarily used to represent what types of numbers?

• Numbers with many decimal places.

• Numbers that are really big or really small.

• Numbers that are multiples of ten.

• Numbers that are difficult to pronounce.

What is the general form of a number written in scientific notation?

• A number plus an exponent.

• A number divided by a power of ten.

• A number multiplied by a power of ten.

• A number subtracted by an exponent.

When a number is written in proper scientific notation, how many non-zero digits should appear to the left of the decimal point?

• Zero digits.

• Exactly one digit.

• Two digits.

• Any number of digits.

In scientific notation, what does the "order of magnitude" of a number refer to?

• The number of digits after the decimal point.

• The first digit of the number.

• The exponent of 10.

• The total number of digits in the original number.

What is 345,000,000,000 written in scientific notation?

• 3.45 x 10^11

• 3.45 x 10^-11

• 34.5 x 10^10

• 0.345 x 10^12

How is 0.000000067 expressed in scientific notation?

• 6.7 x 10^8

• 6.7 x 10^-8

• 0.67 x 10^-7

• 67 x 10^-9

Convert 5.23 x 10^6 to its regular form.

• 523,000

• 5,230,000

• 0.00000523

• 52,300,000

What is the regular form of 7.8 x 10^-4?

• 0.00078

• 0.0078

• 78,000

• 0.000078