ic: ch. 1.4 investigation #1 hw: put it together wkst...
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IC: Ch. 1.4 Investigation #1HW: Put It Together Wkst
Materials
Write the IC and HW in your planner. Tuesday, 9/5/17
• Pencil• Grading pen• Marker, Eraser, Slate• Ch. 1 Math Folder• Extra Credit #2 from Friday.
Math 7
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Directions: Copy and solve each problem.
1) -14 + 8 2) 14 + -8
3) -14 - 8 4) 14 - (-8)
-6 6
-14 + (-8)
-22
14 + 8
22
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Ch. 1.4 InvestigationObjective: TSWBAT discover the pattern for multiplying integers.
Date _________________
“Put in ____ groups _____ positives/negatives”
“Take out ____ groups _____ positives/negatives”
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Expression Product
4 • 1 4
4 • 2 8
4 • 3 12
4 • (-1) - 4
4 • (-2) - 8
4 • (-3) - 12
- 4 • 1
- 4 • 2 - 8
- 4 • 3 - 12
- 4
- 4 • (-1) 4
- 4 • (-2) 8
- 4 • (-3) 12
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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.
Name __________________________Date ___________________________Period: B____, G_____
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?
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3) How can you tell if the answer to a multiplication problem is going to be positive or negative just by looking at it?
3) Write a general rule for multiplying integers.