What is the formula of multiplication in integers?
The product/quotient of two integers of the same signs is always positive and the product or quotient of two integers of different signs is always negative. Thus, the formulas of multiplication/division of integers are: (+) × (+) = +; (+) ÷ (+) = +
What is the rule for multiplying and dividing?
As division is the inverse of multiplication, the rules for division are the same as the rules for multiplication. So when multiplying and dividing positive and negative numbers remember this: If the signs are the same the answer is positive, if the signs are different the answer is negative.
What is the formula of division of integers?
Division of Integers
| Type of Numbers | Operation | Example |
|---|---|---|
| Positive ÷ Positive | Divide | 10 ÷ 5 = 2 |
| Negative ÷ Negative | Divide | (-10) ÷ (-5) = 2 |
| Positive ÷ Negative | Divide | 10 ÷ (-5) = -2 |
| Negative ÷ Positive | Divide | (-10) ÷ 5 = -2 |
What are the 4 operations of integers?
You can perform four basic math operations on them: addition, subtraction, multiplication, and division. When you add integers, remember that positive integers move you to the right on the number line and negative integers move you to the left on the number line.
Do you multiply before you divide?
Order of operations tells you to perform multiplication and division first, working from left to right, before doing addition and subtraction. After computing within the grouping symbols, divide or multiply from left to right and then subtract or add from left to right.
How do you teach multiplication integers?
Follow the Activity procedures:
- Use red and blue chips to multiply integers (blue chips stand for positive integers and red chips stand for negative integers)
- Put in (positive 3) three groups, each group contains (positive 4) four blue chips to get the answer + 12.