Worksheet: Modeling Word Problems with Two-Step Equations

In this worksheet, we will practice writing one or two equations to solve two-step addition and subtraction story problems.

Q1:

A mailman has to deliver letters to 76 houses. In the first street, he delivered to 28 houses, and, in the next street, he delivered to 15 houses.

Pick one way to calculate the number of houses that are left.

  • A He has delivered to 2 8 1 5 = 1 3 houses. So, there are 7 6 1 3 = 6 3 houses left.
  • B He has delivered to 2 8 + 1 5 = 4 2 houses. So, there are 7 6 4 2 = 3 4 houses left.
  • C He has delivered to 2 8 + 1 5 = 4 3 houses. So, there are 7 6 4 3 = 3 2 houses left.
  • D He has delivered to 2 8 + 1 5 = 4 3 houses. So, there are 7 6 4 3 = 3 3 houses left.
  • EHe has delivered to 2 8 1 5 = 1 3 houses. So, there are 7 6 + 1 3 = 8 9 houses left.

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