Study guide: Read Five-Minute Times and U.S. Money
Read minute positions, distinguish a.m./p.m., and solve coin and dollar problems.
Ideas to explain in your own words
- The minute hand passes twelve numbered positions in one hour.
- A twelve-hour clock repeats its hour labels twice in a day.
- U.S. pennies are worth one cent, nickels five, dimes ten, and quarters twenty-five.
- A dollar is one hundred cents, and dollar bills have their stated face values.
Useful vocabulary
- a.m.
- From midnight through the time before noon.
- cent
- One hundredth of a U.S. dollar.
Watch your reasoning
- Do not read the minute-hand numeral as single minutes.
- The hour label repeats, so use the supplied time-of-day context.
- Coin count and cents value are different quantities.
- Change is the payment minus cost, not their sum.
A worked review example
The hour hand is between 3 and 4 and the minute hand points to 8. Eight groups of five minutes are forty, so the time is 3:40. The hour has not reached four. The numeral eight on the dial is not eight minutes. Count dial intervals in fives. Do not read the minute-hand numeral as single minutes. Label clock positions with 5,10,15,...,55 minutes.
Make a practice plan
- Read Five-Minute Positions on a Clock: Hour underway 8, minute hand at 9. Expected: 8:45.
- Distinguish Morning and Afternoon Times: Label 10:00 at night. Expected: 10:00 p.m.
- Add U.S. Coin Values Rather Than Coin Counts: Two quarters, three dimes, one nickel, and four pennies total 89 cents.
- Find Change Using Dollar Values: A $17 item is paid with one $20 and one $5 bill. Expected change: $8.