
- Multiply and Divide Whole Numbers
- Home
- 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)
Division Facts
For every group of three numbers, there will be two multiplication facts and two division facts.
Memorizing such math facts and multiplication tables helps in solving division and multiplication problems.
For example the multiplication and division facts for numbers 40, 5 and 8 are as follows:5 × 8 = 40
8 × 5 = 40
40 ÷ 8 = 5
40 ÷ 5 = 8
In this lesson we use division facts and multiplication tables to solve division problems
Divide 42 ÷ 6
Solution
Step 1:
To find the answer to this problem we need to know the multiplication and division facts for 42, 6 and 7 and multiplication table of 6.
Step 2:
The multiplication facts for 6, 7 and 42 are;
6 × 7 = 42
7 × 6 = 42
The division facts for 6, 7 and 42 are;
42 ÷ 6 = 7
42 ÷ 7 = 6
Step 3:
From above division facts it is clear that
42 ÷ 6 = 7
One more way of explaining given problem is that if there are 6 groups each having equal number of items and the total number of items is 42, then number of items in each group is given by;
42 ÷ 6 = 7
Find the division facts for 8, 10 and 80.
Solution
Step 1:
Divide
80 ÷ 8
80 ÷ 8 = 10
Step 2:
Divide
80 ÷ 10
80 ÷ 10 = 8
Step 3:
So the division facts for 8, 10 and 80 are ;
80 ÷ 8 = 10
80 ÷ 10 = 8
Find the division facts for 9, 12 and 108
Solution
Step 1:
Divide
108 ÷ 9
108 ÷ 9 = 12
Step 2:
Divide
108 ÷ 12
108 ÷ 12 = 9
Step 3:
So the division facts for 9, 12 and 108 are;
108 ÷ 9 = 12
108 ÷ 12 = 9