Operations with Numbers in Scientific Notation Quiz

What is the purpose of writing a number in scientific notation?

• To make it harder to perform mathematical operations.

• To make it easier to read, write, and calculate with very large and very small numbers.

• To confuse students with complex notation.

• To limit the use of numbers in calculations.

What are the steps for adding or subtracting two numbers written in scientific notation?

• Convert the numbers to standard notation before performing the operation.

• Divide the decimal numbers and subtract the powers of 10.

• Multiply the decimal numbers and add the powers of 10.

• Rewrite the number with the smaller exponent so that it has the same exponent as the number with the larger exponent by moving the decimal point of its decimal number.

What is the result of adding (3.4×10^3) + (5.4×10^3)?

• 8.8×10^3

• 8.8×10^4

• 8.8×10^2

• 8.8×10^5

What is the result of multiplying (1.2×10^4) and (3.4×10^4)?

• 4.08×10^8

• 4.08×10^7

• 4.08×10^6

• 4.08×10^5

What is the result of subtracting (5.6×10^4) - (3.2×10^4)?

• 2.4×10^5

• 2.4×10^4

• 2.4×10^2

• 2.4×10^3

What is the result of dividing (24.6×10^5) ÷ (6×10^3)?

• 4.1×10^2

• 4.1×10^3

• 4.1×10^4

• 4.1×10^5

What is the result of adding (5.6×10^4) + (4.4×10^5)?

• 5.94×10^5

• 5.94×10^4

• 5.94×10^6

• 5.94×10^7

What is the result of multiplying (2.56×10^-3) and (3.8×10^6)?

• 9.728×10^3

• 9.728×10^2

• 9.728×10^1

• 9.728×10^4

What is the result of dividing (4.97×10^8) ÷ (7×10^5)?

• 710×10^4

• 710×10^1

• 710×10^2

• 710×10^3

What is the result of subtracting (7.14×10^4) - (5.5×10^4)?

• 1.64×10^3

• 1.64×10^2

• 1.64×10^5

• 1.64×10^4