Adding and Subtracting Standard Form: A Non-Calculator Method

The video tutorial explains how to add and subtract numbers in standard form without using a calculator. It covers the process of converting numbers from standard form to ordinary numbers, performing column addition or subtraction, and converting the result back to standard form. The tutorial also addresses handling negative powers in standard form operations.

What is the first step in adding or subtracting numbers in standard form without a calculator?

• Use a calculator to find the result

• Directly add or subtract the numbers

• Multiply the numbers by 10

• Convert the numbers to ordinary numbers

When adding numbers in standard form with negative powers, in which direction do you move the decimal point?

• Upwards

• Downwards

• To the left

• To the right

How do you determine the power of 10 when converting a number back to standard form after addition?

• Count the number of zeros

• Multiply by 10

• Divide by 10

• Count the number of decimal places moved

What is the result of subtracting 3500 from 872,000 in standard form?

• 8.685 * 10^2

• 8.685 * 10^5

• 8.685 * 10^4

• 8.685 * 10^3

In subtracting numbers with negative powers, what indicates a negative power of 10?

• The presence of a whole number

• The number of digits

• The number of zeros

• The presence of a decimal number

How many places do you move the decimal point to the left for the number 3.5 in standard form with negative powers?

• One place

• Two places

• Three places

• Four places

What is the final result of subtracting 0.0035 from 0.0872 in standard form?

• 8.37 * 10^0

• 8.37 * 10^-1

• 8.37 * 10^-3

• 8.37 * 10^-2