Count Coin Values by 2s, 5s and 10s | 1st Grade Math
Count Coin Values by 2s, 5s and 10s
Use skip-counting relationships to find the value of collections of pennies, nickels, and dimes. Count paired pennies by 2s, nickels by 5s, and dimes by 10s.
Students also combine simple coin groups and use efficient counting order to determine collection values up to 120 cents.
๐ฏ What You Will Learn
Two pennies are worth 2¢, so pairs can be counted by 2s.
Each nickel adds 5¢ to the total.
Each dime adds 10¢ to the total.
Start with larger coin values, then add smaller ones.
๐ง Key Vocabulary
๐ช Three Useful Counting Strategies
๐ Count Mixed Collections Efficiently
For a simple mixed collection, it is often easier to begin with dimes, then count nickels, and finish with paired pennies or single pennies. Keep track of the running total in cents.
๐ 25 Worked Examples
Show solution
Each pair of pennies is worth 2¢. Count 2, 4, 6, 8. The collection is worth 8¢.
Show solution
Each nickel is worth 5¢. Count 5, 10, 15, 20. The value is 20¢.
Show solution
Each dime is worth 10¢. Count 10, 20, 30, 40, 50, 60. The value is 60¢.
Show solution
Count the 3 penny pairs by 2s: 2, 4, 6. The total is 6¢.
Show solution
Count by 5s seven times: 5, 10, 15, 20, 25, 30, 35. The value is 35¢.
Show solution
Count by 10s eight times: 10, 20, 30, 40, 50, 60, 70, 80. The value is 80¢.
Show solution
Each pair is worth 2¢, so count the pairs by 2s.
Show solution
A nickel is worth 5¢, so count by 5s.
Show solution
A dime is worth 10¢, so count by 10s.
Show solution
The pattern adds 5¢ each time. The missing value is 20¢.
Show solution
The pattern adds 10¢ each time. The missing value is 30¢.
Show solution
The pattern adds 2¢ for each pair. The missing value is 6¢.
Show solution
Count the dimes: 10, 20, 30¢. Then add the nickels: 35, 40¢. The total is 40¢.
Show solution
Two dimes are 20¢. Count 3 penny pairs by 2s: 22, 24, 26¢. The total is 26¢.
Show solution
Three nickels are 15¢. Add the penny pairs by 2s: 17¢, 19¢. The total is 19¢.
Show solution
Count 2 dimes to 20¢, add 1 nickel to get 25¢, then count the penny pairs: 27¢, 29¢. Total: 29¢.
Show solution
Count by 5s: 5, 10, 15, 20. Four nickels are worth 20¢.
Show solution
Count by 10s: 10, 20, 30, 40, 50. Five dimes are worth 50¢.
Show solution
Count by 5s twelve times to 60¢.
Show solution
Count by 10s twelve times to 120¢.
Show solution
Count by 5s: 5, 10, 15, 20, 25. That is 5 nickels.
Show solution
Count by 10s: 10, 20, 30, 40, 50, 60, 70. That is 7 dimes.
Show solution
Count by 2s: 2, 4, 6, 8, 10, 12. There are 6 pairs, or 12 pennies.
Show solution
No. The student skipped 20¢. The correct count is 5¢, 10¢, 15¢, 20¢.
Show solution
Use 2s for paired pennies, 5s for nickels, and 10s for dimes. In mixed collections, count higher-value coins first and then add the smaller values.
๐ฎ Independent Practice — 30 Problems
- Eight pennies are arranged as 4 pairs. Count by 2s to find the total value.
- What is the value of 5 nickels?
- What is the value of 4 dimes?
- Ten pennies are arranged as 5 pairs. What is their total value?
- What is the value of 9 nickels?
- What is the value of 7 dimes?
- Complete the penny-pair pattern: 2¢, 4¢, __, 8¢, 10¢.
- Complete the nickel pattern: 5¢, 10¢, 15¢, __, 25¢.
- Complete the dime pattern: 10¢, 20¢, 30¢, __, 50¢.
- Which rule is useful for 6 paired pennies: by 2s, 5s, or 10s?
- Which rule is useful for a nickel-only collection: by 2s, 5s, or 10s?
- Which rule is useful for a dime-only collection: by 2s, 5s, or 10s?
- A collection has 2 dimes and 2 nickels. What is the total value?
- A collection has 3 dimes and 1 nickel. What is the total value?
- A collection has 1 dime and 4 pennies arranged as 2 pairs. What is the total value?
- A collection has 2 nickels and 6 pennies arranged as 3 pairs. What is the total value?
- A collection has 1 dime, 2 nickels, and 4 pennies arranged as 2 pairs. What is the total value?
- A collection has 4 dimes and 3 nickels. What is the total value?
- What is the value of 10 nickels?
- What is the value of 10 dimes?
- A nickel-only collection is worth 30¢. How many nickels are there?
- A dime-only collection is worth 80¢. How many dimes are there?
- Paired pennies total 14¢. How many pairs are there?
- True or false: You should count nickels by 5s.
- True or false: You should count dimes by 10s.
- True or false: One penny is worth 2¢.
- A student counts 5 nickels: 5, 10, 15, 20, 25. Is the total correct?
- A student counts 3 dimes: 10, 20, 40. What value did the student skip?
- In the strategy used in this lesson, which do you count first in a mixed collection: dimes or pennies?
- Extension: Explain why grouping pennies into pairs can make counting a large penny collection faster.
๐ Lesson Test — 15 Questions
- Starting at 0¢, make 7 jumps of 2¢ for 7 penny pairs. On what total do you land?
- Starting at 0¢, make 11 jumps of 5¢ for 11 nickels. On what total do you land?
- Starting at 0¢, make 11 jumps of 10¢ for 11 dimes. On what total do you land?
- A student counts 5 penny pairs as 2¢, 4¢, 6¢, 10¢, 12¢. Which value was skipped?
- Three nickels are already worth 15¢. Two more nickels are added. What should the running total become?
- Three dimes are already worth 30¢. Four more dimes are added. What should the running total become?
- A collection has 4 dimes, 1 nickel, and 2 pennies. In the strategy used in this lesson, which coin type would you count first, second, and last, and what is the final total?
- A student counts 2 dimes as 20¢, then adds 4 nickels but writes 35¢, then adds 3 pennies and writes 38¢. Where is the first error, and what should the final total be?
- Collection A has 1 dime, 3 nickels, and 5 pennies. Collection B has 2 dimes, 1 nickel, and 4 pennies. Which collection has the greater value?
- A counter starts at 0¢ and lands on 55¢ after equal jumps of 5¢. How many jumps were made, and how many nickels does that represent?
- A counter starts at 0¢ and lands on 110¢ after equal jumps of 10¢. How many jumps were made, and how many dimes does that represent?
- A counter reaches 18¢ by making equal jumps of 2¢ for penny pairs. How many jumps were made, and how many pennies are in those pairs?
- A student counts 6 nickels as 5¢, 10¢, 15¢, 20¢, 30¢, 35¢. Which value was skipped?
- A collection has 2 dimes, 2 nickels, and 4 pennies. A student says the total is 32¢. Is the student correct? Give the correct total.
- Explain why counting paired pennies by 2s, nickels by 5s, and dimes by 10s works, and explain what to do if one unpaired penny remains.
๐ Complete Answer Key
Show practice answer key
Practice Answers
Show test answer key
Test Answers
๐ก Common Mistakes to Watch For
One penny is 1¢; only a pair of pennies is 2¢.
Each nickel is worth 5¢, so count nickel values by 5s.
Each dime is worth 10¢, so count dime values by 10s.
In a mixed collection, keep one total and add each new coin value to it.
๐ Related Lessons
๐จ️ Printable Companion
A future Count Coin Values Practice Pack can include penny-pair cards, nickel and dime collections, running-total number lines, mixed-coin counting tasks, error-analysis questions, mixed review, and a complete answer key.
Comments
Post a Comment