- Multiply and Divide Whole Numbers
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- Multiplication as Repeated Addition
- Single Digit Multiplication
- Multiplication by 10, 100, and 1000
- Multiplication Without Carry
- Multiplication With Carry
- Multiplication With Trailing Zeros: Problem Type 1
- Multiplication With Trailing Zeros: Problem Type 2
- Multiplication of 2-digit Numbers With 2-digit Numbers
- Multiplication of a Single Digit Number With Large Numbers
- Multiplication of Large Numbers
- Multiples Problem Type 1
- Multiples Problem Type 2
- Division Facts
- Fact Families for Multiplication and Division
- Multiplication or Division of Whole Numbers (Word problems)
- Multiplication and Addition or Subtraction of Whole numbers (Word problems)
- Unit Rates and Ratios of Whole Numbers (Word problems)
- Division Without Carry
- Division With Carry
- Division Involving Zero
- Whole Number Division: 2-digit by 2-digit, No Remainder
- Whole Number Division: 3-digit by 2-digit, No Remainder
- Division With Trailing Zeros: Problem Type 1
- Division With Trailing Zeros: Problem Type 2
- Quotient and Remainder: Problem type 1
- Quotient and Remainder: Problem type 2
- Quotient and Remainder (Word problems)

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# Multiplication or division of whole numbers

Each student in a class receives 12 sketch pens. If there are 60 students in the class, how many sketch pens are needed?

### Solution

**Step 1:**

The number of sketch pens each student receives = 12

The number of students in the class = 60

**Step 2:**

This is clearly a multiplication problem.

So, the total number of sketch pens needed

= 60 × 12 = 720

Ms. Capri’s students have written a total of 425 essays. If each essay contained 500 words, how many total words were in all the essays?

### Solution

**Step 1:**

The number of essays written by students = 425

The number of words in each essay = 500

**Step 2:**

This is clearly a multiplication problem.

So, the total number of words in all essays

= 425 × 500 = 212500

An auditorium contains 3000 seats. There are 100 rows. How many seats are on each row?

### Solution

**Step 1:**

The seats in each row is given by the division sentence 3000 ÷ 100

So this is clearly a division problem

**Step 2:**

Using multiplication facts

30 × 100 = 3000

3000 ÷ 100 = 30

So the seats in each row in the auditorium = 30