Multiple Choice
Choose the
correct answer.
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Ming used counters to represent (-8) -
(+5).
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1.
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Which
of the following statements best describes how Ming used counters to model the
problem? A. | She subtracted
red counters from the blue counters. | B. | She added red counters to the blue counters and then subtracted
them. | C. | She added pairs of red and blue counters (which are equal to 0)
to the blue counters. Then she subtracted the red counters. | | |
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Numeric Response
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Calculate the difference using a counter model.
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2.
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(-6)
- (+7)
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3.
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(-4)
- (+2)
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4.
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(-5)
- (-2)
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5.
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(-10)
- (-15)
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A golf
tournament lasted 2 days. The players’ scores for each day are shown in the
table.
Find the change in scores from day 1 to day 2 for each player.
(Hint: Subtract day 1 scores from day 2 scores.)
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6.
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What
was the change in Sam’s score?
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7.
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What
was the change in Miguel’s score?
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8.
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What
was the change in Vijay’s score?
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9.
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What
was the change in Davis’s score?
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10.
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What
was the change in Tiger’s score?
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11.
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What
was the change in Mike’s score?
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