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Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.
Multiply Integers
1. Same Sign
Positive Answer
2. Different Signs
Negative Answer
3 4 = 12
-3 -4 = 12
3 -4 = -12
-3 4 = -12
Example 1 Multiply Integers with Different Signs
Example 2 Multiply Integers with Different Signs
Example 3 Multiply Integers with Same Signs
Example 4 Multiply Integers with Same Sings
Example 5 Use Integers to Solve a Problem
Answer:
Opposite Signs
Multiply numbers without signs9 6
54 Opposite signs , negative answer-
Write problem
9 ( - 6 ) Draw arrows to signs
Identify signs
1/5
Find 9 (-6)
Answer:
Opposite Signs
Multiply numbers without signs5 7
35-
Write problem
- 5 7 Draw arrows to signs
Identify signs
Opposite signs , negative answer
2/5
Find - 5 7
Answer:
Same Signs
Multiply numbers without signs7 9
63+
Write problem
7 9 Draw arrows to signs
Identify signs
Same signs, positive answer
3/5
Find 7 9
Answer:
Same Signs
Multiply numbers without signs4 8
32+
Write problem
- 4 ( - 8 ) Draw arrows to signs
Identify signs
Same signs, positive answer
4/5
Find - 4 (- 8)
ELEVATORS An elevator takes passengers from the ground floor of a mall down to the underground parking garage. If it travels at a rate of 5 feet per second, where will it be in relation to the ground floor after 2 seconds?
- 5 2
5/5
Determine process to use
“Rate” refers to distance multiplied by time
Identify distance
Elevator is going down so number is negative
Identify time
Answer:
Opposite Signs Multiply numbers without signs
5 2
10-
- 5 2Draw arrows to signs
Identify signs
Opposite signs , negative answer
5/5
If it travels at a rate of 5 feet per second,
Add dimensional analysisfeet
Distance is in feet
INVESTMENTS Mr. Green has invested in a stock whose price is decreasing at a rate of $3 per day. What will be the change in the price of the stock after 5 days?
Answer: – $15
*
5/5
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