Signs & Integers
Without solving, is the product positive or negative?
(-4)(7)
negative
2.4 x 0.5
1.2
-4.95 ÷ 1.5
-3.3
3 9/10*(-2 2/3)
-10 2/5
-1 5/6-:4 1/6
-11/25
Without solving, is the product positive or negative?
(-3)(-2)(-5)
negavtive
-4.5(-0.2)
0.9
6.4 ÷ (-3.2)
-2
5/8*(-4/15)
-1/6
-4/11-:2/7
-1 3/11
Which expression has a negative product?
A. (-4)(-6)
B. (-5)(3)
C. (-2)(-7)
D. (-1)(-8)
B
-7.2 x 0.5 x (-2)
7.2
-15.4 ÷ (-2.5)
6.16
-2 3/8*(-1 3/5)
3 4/5
9/10-:(-1 1/5)
-3/4
A student says:
(-2)(-3)(-4) is positive because there are two negative numbers.
Is the student correct? Explain.
No. There are three negative factors, so the product is negative.
A student says:
-3.2 x 0.4=-12.8
What mistake did they make? What is the correct answer?
They multiplied incorrectly/misplaced the decimal.
Correct answer: -1.28
32.436 ÷ (-4.24)
-7.65
The elevation of a sunken ship is -120 feet. Your elevation is
5/8
of the ship's elevation. What is your elevation?
-75 ft
-4 1/6-:1 1/3
-3 1/8
Three integers satisfy:
a x b=-15
a x c=6
b x c=-10
If a is negative, find a, b, and c.
a=-3
b=5
c=-2
A store sells something for $4.75. You buy 2.4 of them.
How much do you spend?
$11.40
How many 2.25-pound containers can you make with 24.75 pounds of almonds?
11 containers
-3/5*2 2/7(-3 3/4)
5 1/7
How many
1 1/4
pound packages can you make with
7 1/2
pounds of cashews?
6 packages