Lesson 4

Subtract with Mental Math

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

Ask students to share solution strategies. Have number lines, coins, and 200 Charts readily available.

  1. Luis, 40¢; Possible response: Five nickels are worth 25¢, and the pennies are worth 17¢, so four dimes or 40¢ is the most.
  2. 82¢; 17¢ + 25¢ + 40¢ = 82¢

M. Money

Rosa has 17 pennies. Josh has 5 nickels. Luis has 4 dimes.

  1. Who has more money? How do you know?
  2. How much do Rosa, Josh, and Luis have altogether?