Lesson 5

Model Repeated Addition and Subtraction

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

Read the problems aloud to the students. Ask students to explain their strategies.

  1. 5 + 5 = 10 chores
  2. 3 + 8 = 11 windows
  3. 9 + 2 = 11 toys

These problems provide practice with addition facts in Group C.

P. More Word Problems for Facts

Solve the problems and write a number sentence for each.

  1. Jacob does chores at home to help his family. This week he took out the garbage 5 times, and he set the table for supper 5 times. How many chores did Jacob do this week?

    Number sentence: ________________

  2. On Tuesday Jacob helped wash windows. He washed 3 windows. His big sister washed 8 windows. How many windows did they wash altogether?

    Number sentence: ________________

  3. Yesterday Jacob picked up 9 toys. His sister picked up 2 toys. How many toys did they pick up altogether?

    Number sentence: ________________