MULTIPLYING AND DIVIDING INTEGERS NS 2 I understand

MULTIPLYING AND DIVIDING INTEGERS

NS 2 • I understand the multiplicative inverse. • I understand can apply multiplication and division rules for integers.

Think about? 1. What do we call our answers to a multiplication or division problem. 2. Can you divide any number by zero? 3. How can you undo a multiplication problem or a division problem?

VOCABULARY • Multiplicative inverse- the (RECIPROCAL) of any number • Reciprocal- write the number as a fraction and flip it • Product- the answer to a multiplication problem • Quotient-the answer to a division problem

The Inverse of Multiplying is Dividing • Multiplying can be "undone" by dividing. • Example: 5 × 9 = 45 can be reversed by 45 / 9 = 5 • It works the other way around too, dividing can be undone by multiplying. • Example: 10 / 2 = 5 can be reversed by 5 × 2 = 10 Multiplicative Inverse • The multiplicative inverse is what we multiply a number by to get 1. • It is the reciprocal of a number. • Example: The multiplicative inverse of 5 is 15, because 5 × 15 = 1 • But Not With 0 • You can't divide by 0, so don't try! • Example: 5 × 0 = 0 cannot be reversed by 0/0 = ? ? ?

Let’s practice multiplicative inverse which is also called _____. • https: //quizlet. com/_3 ascga

RULES FOR MULTIPLYING/DIVIDING INTEGERS WITH PRACTICE • https: //www. youtube. com/watch? v=V 7 y. Zc. BYdwbo&t=300 s