1MPES2Multiply & Divide on

Ecole Supérieure de Commerce de Neuchâtel

Pierre Marchal7.09.2015

http://creativecommons.org/licences/by/3.0/Attribute to: Pierre Marchal (Lycée Jean-Piaget)

Objectives of the course

By the end of the course, you should be able to:– Cite and apply the sign rules for multiplication and

for division– Perform any type of multiplication & division– Work comfortably with positive and negative

numbers

Sign rule for multiplying and dividing

YES NODo the signs match ?

Multiply or divide

The sign is positive The sign is negative

EXAMPLES OF APPLICATION

Apply the rule

Warning: be sure not to confuse :a problem like with .

subtraction multiplication

PRACTICE EXERCISES

Practice Multiplication

• (4)(-1)• (7)(-5)• (10)(-8)• (-7)(-2)• (-4)(-2)• (6)(-1)

• (9)(-4)• (-9)(-7)• (-5)(2)• (-2)(-2)• (-5)(4)• (-3)(-9)

Practice Division

•

•

•

By the end of this course

• You are able to :– Cite and apply the sign rules for multiplication and

for division– Perform any type of multiplication & division– Work comfortably with positive and negative

numbers

Any question ?

THANKS FOR YOUR ATTENTIONSee you on Thursday and be ready for a test !