Scientific Notation Quiz

Why is scientific notation useful when dealing with very large numbers?

• It simplifies calculations and reduces errors.

• It increases the precision of numbers.

• It makes numbers look more impressive.

• It is required by all scientific calculators.

How do you convert a large number like 45000 into scientific notation?

• Move the decimal point to the right and multiply by 10.

• Move the decimal point to the left and divide by 10.

• Move the decimal point to the left and multiply by 10.

• Move the decimal point to the right and divide by 10.

What does a negative exponent in scientific notation indicate?

• The number is negative.

• The number is zero.

• The number is very small.

• The number is very large.

What is the coefficient in scientific notation?

• A number less than 0.

• A number between 0 and 1.

• A number greater than 10.

• A number between 1 and 10.

How do you add two numbers in scientific notation with the same exponent?

• Add the exponents and multiply the coefficients.

• Subtract the exponents and add the coefficients.

• Add the coefficients and keep the exponent the same.

• Multiply the coefficients and add the exponents.

What must you do before adding two numbers in scientific notation with different exponents?

• Subtract the smaller exponent from the larger one.

• Convert them to standard form.

• Adjust the exponents to be the same.

• Add the exponents together.

When multiplying two numbers in scientific notation, what do you do with the exponents?

• Multiply them.

• Divide them.

• Subtract them.

• Add them together.

How do you divide two numbers in scientific notation?

• Subtract the coefficients and divide the exponents.

• Add the coefficients and multiply the exponents.

• Divide the coefficients and subtract the exponents.

• Multiply the coefficients and add the exponents.

What is the correct way to enter 5 x 10^3 into a calculator?

• 5, E, 3

• 5, multiply, 10x, 3

• 5, multiply, 3, 10x

• 5, multiply, 10, multiply, 3

What is the result of (4.5 x 10^7) / (7.82 x 10^9) rounded to 2 significant figures?

• 5.8 x 10^-3

• 0.58 x 10^-2

• 5.75 x 10^-3

• 0.57 x 10^-2