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A visual representation of dividing whole numbers with the correct vocabulary.

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Steps of Multiplying Whole Numbers (Slides 15 and 16 on PP)

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Steps of Multiplying Whole Numbers (Slides 15 and 16 on PP)

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Step 1: Align the multiplicand and multiplier at the right.
Step 2:Multiply the right digit of the multiplier with the right digit of the multiplicand.  Keep multiplying as you move left through the multiplicand.
Step 3:Your partial product right digit or first digit is placed directly below the digit in the multiplier that you used to multiply.
Step 4: Continue steps 2 and 3 until the multiplication process is complete.  Add the partial products to get the final product.

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Here is a website that helped me understand that subtraction of whole numbers is an inverse of adding whole numbers

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Subtracting whole numbers is the inverse operation of adding whole numbers.

Instead of adding two numbers to get a sum, you are removing one number from another to get a difference. First, look at the following simple simple subtraction problems

The first is 8 − 4 = 4. Thinking about money, you have 8 dollars and you spend 4, you are left with 4

Subtractions with one digit are usually fairly easy.

Things start getting complicated when you have more than one digit and you cannot remove the number at the bottom from the number on top such as when doing 85 − 8

Study the following example carefully because the concept of borrowing a ten is illustrated here

Since you could not remove 8 from 5, you borrowed a ten from 8 tens and add that to 5 to make it 15

You can also write the problem without the tens and the ones to make it look simpler as illustrated below
Another example
Once again, study the following example carefully. If you understand it and the one before, you should be well on your way to mastering subtracting
Step #1
Borrow a 10 from 2 tens

The problem becomes
Step #2
Borrow 1 hundred from 4 hundreds. 1 hundred = 10 tens. Then add 10 tens to 1 ten to make it 11 tens
Step #3
Borrow 1 thousand from 5 thousands. 1 thousand = 10 hundreds.

Then add 10 hundreds to 3 hundreds to make it 13 hundreds

Then, just subtract now since all numbers at the bottom are smaller than the number on top

Check how well you understood this lesson about subtracting whole numbers with the quiz below.

May 19, 19 09:20 AM
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Subtracting whole numbers is the inverse operation of adding whole numbers. Instead of adding two numbers to get a sum, you are removing one number from another to get a difference. First, look at the following simple simple subtraction problems The first is 8 − 4 = 4.

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Addition - Adding Whole Numbers - MathHelp.com

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For a complete lesson on addition, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to add numbers with two or more digits, such as 139 + 25. The first step is to line up the numbers vertically so that the units digits are in the same column.

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A YouTube video that shows the 3 steps of rounding.

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Rounding Whole Numbers: Round to the Nearest Hundred

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Textbook Example of Rounding Whole Numbers

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Textbook Example of Rounding Whole Numbers

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Round 9362 to the nearest hundred
Step 1: The digit 3 is in the hundreds place. 3 is the identified digit.
Step 2: The digit to the right of 3 is 5 or more (6). The 3 will be changed to a 4.
9462 is the number so far until the next step.
Step 3: Change digits 6 and 2 to zeros since these digits are to the right of the 4.
Final Answer: 9400

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Step 1:Identify the place value of the digit you want to round
Step 2: If the digit to the right of the identified digit is 5 or more, then increase identified digit by 1. If digit is less than 5, then leave the identified digit the same.
Step 3: Change all digits to the right of the rounded identified digit to zeros.