UNIT ELEVEN
1. Write
the number that matches the description.
3 in the hundreds place
8 in the ten-thousands place
2 in the tens place
5 in the ones place
4 in the thousands place
2. Write
the number that matches the description.
5 in the hundreds place
9 in the ones place
4 in the thousands place
2 in the tens place
8 in the ten-thousands place
2 in the hundred thousands place
3. Write
the number that is 10,000 more than 575,441.
4. Last
night, Julie started reading at 8:24 p.m. She stopped
reading 1 hour later. Draw hands on clock face (a) to show the
2
time she started reading. Draw hands on clock face (b) to show
the time she stopped reading.
(a)
(b)
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5. Circle
the letter next to each statement that is true for the
spinner.
A. You are more likely to
get black than stripes.
B. You are less likely to
get stripes than dots.
C. You are certain to get
dots.
D. You are equally likely
to get black, white, or
or stripes.
6. Circle
the letter next to each statement that is true for the
spinner.
A. You are more likely to
get dots than white.
B. You are equally likely
to get black or white.
C. It is impossible to get
black.
D. You are less likely to
get dots than stripes.
[Type text]
7. Circle
the letter next to each statement that is true for the
spinner.
A. You are equally likely
to get dots or stripes.
B. You are less likely to
get black than white.
C. You are more likely to
get white than dots.
D. You are less likely to
get dots than stripes.
8. Circle
the letter next to each statement that is true for the
spinner.
A. You are equally likely
to get dots or stripes.
B. You are less likely to
get black than white.
C. You are more likely to
get dots than white.
D. You are less likely to
get dots than stripes.
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9. What
fraction of the spinner is covered with R?
B
R
B
G
B
R
B
B
10.
R
B
R
G
R
G
R
G
In the first column, predict what you will get if you spin the
spinner 8 times. After predicting, take a paper clip and actually
spin 8 times. Record your results in the second column of the
table below.
Letter
B
G
R
Predicted Results Actual Results
for 8 Spins
for 8 Spins
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11.
B
R
B
G
B
R
B
B
In the first column, Michael predicted what he would get if he
spun the spinner 8 times. After predicting, Michael spun the
spinner 8 times and recorded his results in the second column.
Explain why Michael’s actual results are different from his
predictions.
Letter
B
Predicted Results Actual Results
for 8 Spins
5
for 8 Spins
3
G
1
4
R
2
1
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12. There
are 10 marbles in the box. The marbles may be black or
white. Based on the results of the draws, decide how many
marbles of each kind are in the box. Shade the circles in the box
to match your decision.
From 100 random draws you get:
a black marble 7 times
a white marble 93 times
13. There
are 10 marbles in the box. The marbles may be black or
white. Based on the results of the draws, decide how many
marbles of each kind are in the box. Shade the circles in the box
to match your decision.
From 50 random draws you get:
a black marble 8 times
a white marble 42 times
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14. The
Ice Cream Spinner
At Emily’s Ice Cream Shop, customers spin a spinner to win a
free scoop of ice cream in one of three flavors.
a. Make a spinner so that the following statements are true:
• About 1 the time, customers win a scoop of vanilla ice
2
cream.
• Customers win a scoop of strawberry ice cream about half
as often as they win a scoop of chocolate ice cream.
b. Each employee made a tally chart and recorded when a
customer won a scoop of ice cream. At the end of the day, their
tally charts did not match. Which employee’s tally chart is most
likely to be correct? Explain how you found your answer.
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[1] 84,325
[2] 284,529
[3] 585,441
[4]
(a)
[5]
A. You are more likely to
get black than stripes.
B. You are less likely to
get stripes than dots.
C. You are certain to get
dots.
D. You are equally likely
to get black, white, or
or stripes.
(b)
[Type text]
[6]
A. You are more likely to
get dots than white.
B. You are equally likely
to get black or white.
C. It is impossible to get
black.
D. You are less likely to
get dots than stripes.
[7]
A. You are equally likely
to get dots or stripes.
B. You are less likely to
get black than white.
C. You are more likely to
get white than dots.
D. You are less likely to
get dots than stripes.
[Type text]
[8]
A. You are equally likely
to get dots or stripes.
B. You are less likely to
get black than white.
C. You are more likely to
get dots than white.
D. You are less likely to
get dots than stripes.
[9]
2
8
Letter
[10]
B
Predicted Results Actual Results
for 8 Spins
1
for 8 Spins
Answers vary.
G
3
Answers vary.
R
4
Answers vary.
[11] Explanation: Sample answer: Predictions are based on perfect results. You would need to do
many more than 8 spins to be close to the prediction.
[12]
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[13]
[14] a.
b. Petra’s chart is most likely to be correct. Of the 33 scoops noted on the chart, 17 were vanilla,
11 were chocolate, and 5 were strawberry. 17 is a little over half of 33; and 5 is about half of 11.