Transcript Lesson 2.5 - 2.6

Bell Ringer #5
 Mrs. Kang has $619.46 in her checking
account. She wrote a check for $950.00.
By how much did she overdraw her
checking account?
 La señora Kang tiene $ 619.46 en su
cuenta de cheques. Ella escribió un
cheque por $ 950.00 . Por cuánto hizo
ella sobregirar su cuenta de?
2.5 and 2.6
Multiplication and Division
Rules for Multiplication and Divison
 When there are an odd number of
negative signs the answer is
negative.
 When there are an even number of
negative signs the answer is
positive.
Multiply.
8(-5)
(-7.2)(5)
Multiply.
1 5
− ∙
3 7
2 9
−
3 4
Multiply.
(-3)(-4)
(-8)(0)
Multiply.
5
−
6
∙
1
−
9
-5(-6)(-3)
Multiply.
-4(5)(-3)(2)
Divide.
15 ÷ −3
−21 ÷ (−7)
Divide.
−44

−11
35

−5
How do we find a reciprocal?
Flip the fraction!
Find the reciprocal
7

8
−5
How do we find divide fractions?
KFC
Keep, Flip, Change
Divide.
4
−
8
÷
4

3
9
−
7
÷
3
−
5
Ticket Out the Door
 Try and solve the following:
 1.
−9 −8 + −3
25
−3 −9 +7
2.
−4
3.
−3 4
−9