**Middle School Number Sense Lesson 99: Converting Money**

This concept is one of the most practical number sense questions around. It showed up

**4 times**this year, with a median placement at

**question # 28**.

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**Number Dojo Level: 46**

In the past 10+ years, I have only seen questions about four denominations of United States currency:

- Quarter (25¢)
- Dime (10¢)
- Nickel (5¢)
- Penny (1¢)

I would love to see questions about half-dollars, dollar coins, and/or $2 bills…they’re my favorite since nobody seems to use them anymore.

**Example 1: 64 nickels = $___**

- Multiply by .05 (or divide by 20)
- 64 x .05 = 3.2; the answer is
**3.20**(because we have two write 2 decimal places)

**Example 2: $11.15 = ___ nickel(s)**

- Divide by .05 (or multiply by 20)
- 11.15 x 20 = 22.3 x 10 =
**223**

**Example 3: 14 quarters + 13 nickels = ___ ¢**

- 14 quarters = 14 x 25¢ = 350¢
- 13 nickels = 13 x 5¢ = 65¢
- 350¢ + 65¢ =
**415**

**Example 4: 7 nickels, 3 quarters, and 29 pennies = ___¢**

- 7 nickels = 7 x 5¢ = 35¢
- 3 quarters = 3 x 25¢ = 75¢
- 29 pennies = 29 x 1¢ = 29¢
- 35¢ + 75¢ + 29¢ = 110¢ + 29¢ =
**139**

**Example 5: 17 quarters + 6 dimes = $___**

- 17 quarters = 17 x .25 =
**4.25** - 6 dimes = 6 x .10 =
**.60** - 4.25 + .60 =
**4.85**

**Example 6: 23 quarters – 5 dimes = $___**

- 23 quarters = 23 x .25 =
**5.75** - 5 dimes = 5 x .10 =
**.50** - 5.75 - .50 =
**5.25**

**Example 7: 14 dimes + 7 quarters = ___ nickels**

- 14 dimes (x 2) = 28 nickels
- 7 quarters (x 5) = 35 nickels
- 28 + 35 =
**63**

**Here's a free worksheet to help you practice ConvMoney:**

convmoney.pdf |

**Up Next for Middle School: FOIL2by2Digit**