Unit 5: Making Change, Time & Perimeter
Unit 5 Review: Making Change and Time
You will now practice all the skills you learned in Unit 5. Check your work using the answer key at the end of the review.
 Circle the number of coins you would need to get from the first number to the second number. Make sure to use the least number of coins you can.
 35¢ to 40¢
 85¢ to 90¢
 60¢ to 70¢
 25¢ to 50¢
 35¢ to 40¢
 State the number and kind of coins you would need to get from the first number to the second number. Make sure you use the least number of coins as possible.
 95¢ to $1.00
 15¢ to 25¢
 75¢ to $1.00
 State the number and kind of coins you would need to get from the first number to the second number. Make sure you use the least number of coins as possible.
 65¢ to 75¢
 35¢ to 75¢
 20¢ to 50¢
 State the number and kind of coins you would need to get change from $1.00. Make sure you use the least number of coins as possible.
 40¢
 55¢
 20¢
 80¢
 35¢
 65¢
 2 apples cost 75¢
 a pen costs 95¢
 a doughnut costs 75¢
 a ruler costs 25¢
 Mrs. Low bought 3 lemons for 90¢. How much change will she get back from $1.00?
 Mr. Garcia bought a can of peaches for 65¢. How much change will he get back from $1.00?
 Write the time shown on each clock.
 Under each clock is a time on a digital clock. Put the hands on the analog clock to show the digital time.
 Change each 12hour clock time to 24hour clock time. Watch carefully for a.m. and p.m. Remember: only times between 1:00 p.m. and 11:59 p.m. need to be changed.
 6:48 a.m.
 9:56 p.m.
 7:45 p.m.
 5:30 a.m.
 11:17 p.m.
 10:08 a.m.
 Change each 24hour clock time to 12hour clock time. You will need to use a.m. or p.m in your answer.
 2115
 0718
 1326
 1142
 1830
 0145
 Add the times.
 [latex]\begin{array}[t]{rr}&6\text{ h, }40 \text{ min}\\+& 3\text{ h,} 10\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&4\text{ h, }20\text{ mins}\\+& 8\text{ h, }15\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&8\text{ h, }42\text{ min}\\+& 6\text{ h, }15\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&7\text{ h, }36\text{ min}\\+& 9\text{ h, }22\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&4\text{ h, }15\text{ min}\\+& 7\text{ h, }29\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&5\text{ h, }36\text{ min}\\+& 9\text{ h, }17\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&2\text{ h, }43\text{ min, }35\text{ s}\\+& 5\text{ h, }11\text{ min, }22\text{ s}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&6\text{ h, }24\text{ min, }43\text{ s}\\+& 9\text{ h, } 28\text{ min, }08\text{ s}\\ \hline \\ \end{array}[/latex]
 The first soccer game took 2 h, 32 min to complete. The second soccer game took 3 h, 19 min. How long did both games take?
 The first crosscountry skier completed the race in 2 h, 05 min, 37 s. The second skier completed the race in 2 h, 06 min, 18 s. What is the total time?
 Subtract the times.
 [latex]\begin{array}[t]{rr}& 6\text{ h, }45\text{ min}\\& 3\text{ h, }20\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&8\text{ h, }50\text{ min}\\& 4\text{ h, }15\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&16\text{ h, }58\text{ min}\\& 7\text{ h, }27\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&11\text{ h, }47\text{ min}\\& 2\text{ h, }13\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&17\text{ h, }42\text{ min}\\& 9\text{ h, }18\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&13\text{ h, }51\text{ min}\\& 8\text{ h, }37\text{ min}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&14\text{ h, }32\text{ min, }41\text{ s}\\& 5\text{ h, }26\text{ min, }39\text{ s}\\ \hline \\ \end{array}[/latex]
 [latex]\begin{array}[t]{rr}&18\text{ h, }47\text{ min, }36\text{ s}\\&9\text{ h, }19\text{ min, }19\text{ s}\\ \hline \\ \end{array}[/latex]
 The first cross country skier to finished the race in 1 h, 34 min, 04 s. The next cross country skier finished the race in 1 h, 42 min, 33 s. What is the difference in their times?
 It takes 2 h, 20 min to travel from London to Paris on the train. It takes 8 h, 55 min to travel from London to Paris by both ferry and train. How much longer does it take by ferry and train?
 Find the perimeter of the shape. Be sure to put the unit of measure in your answer.
 Find the perimeter of each square. Be sure to include the unit of measure in your answer.
 Chung is putting new fencing around his square swimming pool. The length of side is 30 metres. How much fencing will Chung need?
 Find the perimeter of each rectangle. Be sure to include the unit of measure in your answer.
 Say Han is decorating a rectangular birthday that measures 61 centimetres by 31 centimetres. He wants to put an icing decoration around the cake. What is the perimeter of the cake?
Answers to Unit 5 Review

 1 nickel
 1 dime, 1 nickel
 1 dime
 1 quarter

 1 nickel
 1 dime
 1 quarter

 1 dime
 1 quarter, 1 dime
 1 nickel, 1 quarter

 1 dime, 2 quarters
 2 dimes, 1 quarter
 1 dime, 3 quarters
 2 dimes
 1 dime, 2 quarters, 1 nickel
 1 dime, 1 quarter
 1 quarter
 1 dime
 1 dime
 3 quarters
 1 dime
 1 dime, 1 quarter

 11:30
 4:55
 3:45
 10:25
 7:13
 12:48
 9:12
 11:37


 0648
 2156
 1945
 0530
 2317
 1008

 9:15 p.m.
 7:18 a.m.
 1:26 p.m.
 11:42 a.m.
 6:30 p.m.
 1:45 a.m.

 9 h, 50 min
 12 h, 35 min
 14 h, 57 min
 16 h, 58 min
 11 h, 44 min
 14 h, 53 min
 7 h, 54 min, 57 s
 15 h, 52 min, 51 s
 5 h, 51 min
 4 h, 11 min, 55 s

 3 h, 25 min
 4 h, 35 min
 9 h, 31 min
 9 h, 34 min
 8 h, 24 min
 5h, 14 min
 9h, 06 min, 02s
 9 h, 28 min, 17 s
 8 min, 29 s
 6 h, 35 min

 31 metres
 22 metres
 30 metres

 24 kilometres
 52 centimetres
 120 metres

 34 metres
 84 centimetres
 184 centimetres
CONGRATULATIONS!!
Now you have finished Unit 5.
TEST TIME!
Ask your instructor for the Practice Test for this unit.
Once you’ve done the practice test, you need to do the unit 5 test.
Again, ask your instructor for this.
Good luck!