IC: x/÷ Integers RulesHW: +/-//÷ Practice (copy on paper)

Materials

Write the IC and HW in your planner.

Wednesday, 9/4/19

• Pencil• Planner (fill it out now, please )• Grading pen• Marker, Eraser, Slate• Math Folder• Piece of paper (loose)• Review Wkst (1.3 Practice)

Math 7

1) Write the mixed number as an improper fraction.

2) Change the improper fraction to an equivalent decimal

number.

126

Directions: Copy and solve each problem. If it is

subtraction, rewrite it as an addition problem first!!

1) -3 + 10 2) 5 - (-3)

7

-18

-10 + (-8)

5 + 3

8

3) -10 – 8 4) 7 + (-11)

-4

Directions: Copy and solve each problem. If it is

subtraction, rewrite it as an addition problem first!!

1) -8 + 10 2) -7 - (-1)

2

-25

-15 + (-10)

-7 + 1

-6

3) -15 – 10 4) 4 + (-9)

-5

___ ___

__________________

or

__________________

__________________

or

__________________of

Ch. 1.4 InvestigationObjective: TSWBAT discover the pattern for multiplying integers.

Date _________________

“Put in ____ groups _____ positives/negatives”

“Take out ____ groups _____ positives/negatives”

1) What do you notice is true about the problems that have positive products?

2) What do you notice is true about the problems that have negative products?

I noticed that all positive products had integers with same signs.

I noticed that all negative products had integers with different signs (a mixture of signs).

Directions: Use your data from your investigations on the front side of this paper to help you make decisions about your answers to the following questions.

3) How can you tell if the answer to a multiplication problem is going to be positive or negative just by looking at it?

4) Write a general rule for multiplying integers.

When the integers have the same sign the product is positive. When the integers have different signs the product is negative.

Signs match (same signs) = positive productDifferent signs (mixture) = negative product

Write down 1 problem you can add to this list. Solve it!

Write down 1 problem you can add to this list. Solve it!

18 ÷ 9 -8 ÷ -2

9 • ___ = 18

___ • 9 = 18

2 -2 • ___ = -8

___ • (-2) = -8

= 4= 2

2

4

4

-10 ÷ 5 24 ÷ -4

5 • ___ = -10

___ • 5 = -10

(-2) -4 • ___ = 24

___ • (-4) = 24

= -6= -2

-2

(-6)

-6

Directions: Don’t copy, just decide if the answer is positive (P) or

negative (N).

1) -3 + 10

4) -8 -23) -9 2

2) 5 - (-3)

5 + 3P P

N P

Directions: Copy and solve each problem.

1) -3 + 10

4) -8 -23) -9 2

2) 5 - (-3)

7

4 -18

5 + 3

8

Directions: Copy and solve each problem.

1) -3 + -12

4) 10 -53) -6 -4

2) -2 - 4

-15

-224

-2 + -4

-6

Directions: Copy and solve each problem.

1) 8 + -1

4) -24 -63) 3 -2

2) -9 - -2

7

4 -6

-9 + 2

-7

Directions: Copy and solve each problem.

1) -22 + -10

4) 45 -93) -1 17

2) 1-(-13)

-32

5 -17

1 + 13

14

Directions: Copy and solve each problem.

1) 16 + -4

4) -25 53) -7 -7

2) -2 - (-2)

-12

-5 49

-2 + 2

0

Directions: Copy and solve each problem.

1) -5 + 5

4) -48 -63) 8 -3

2) 5 - 5

0

8 -24

5 + -5

0