Wyoming Math 2.MD.8

Math2nd GradeMeasurement and Data

The Standard

Solve word problems up to $10 involving dollar bills, quarters, dimes, nickels, and pennies, using $ (dollars) and ¢ (cents) symbols appropriately.

2023 Wyoming Mathematics Content and Performance Standards · Work with time and money.

Teacher's field guide

What Students Need to Do: Students count dollar bills and mixed coins to solve buying and change problems up to $10. They write amounts using $ and ¢ correctly.
What Mastery Looks Like: A student can find a total or the change due and show the steps with coins, drawings, or an equation. They write two dollars and five cents as $2.05, and sixty-five cents as 65¢.
Common Misconceptions: Some students count the number of coins instead of their value, or mistake a nickel for a dime. Others write $2.5 for two dollars and five cents, or forget that 100¢ equals $1.
How to Assess It: A pencil costs $1.35. You pay with two $1 bills. Draw coins for your change and write its value using ¢.

Lesson moves

Give pairs three $1 bills and mixed coins; have them build $2.68 and record which bills and coins they used.
Ask, 'Maya says three quarters and two dimes make 5¢ because she has five coins. What would you tell her?'
Post item cards priced from 35¢ to $4.25; partners draw two cards, find the total, and pay with play money.
Choose two items from a grocery flyer with a total under $10; write the total and show how to pay with bills and coins.

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