Multiple Choice
Choose the
correct answer.



Ming used counters to represent (8) 
(+5).


1.

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.   

Numeric Response



Calculate the difference using a counter model.


2.

(6)
 (+7)


3.

(4)
 (+2)


4.

(5)
 (2)


5.

(10)
 (15)



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.)


6.

What
was the change in Sam’s score?


7.

What
was the change in Miguel’s score?


8.

What
was the change in Vijay’s score?


9.

What
was the change in Davis’s score?


10.

What
was the change in Tiger’s score?


11.

What
was the change in Mike’s score?
