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Y.1 Addition and subtraction two-step word problems

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What are two-step word problems?

Two-step word problems are problems that require two operations to solve. You may need to add and then subtract, subtract and then add, or use addition twice or subtraction twice to find the answer.

Example:
  • There are 35 apples in a basket. 12 more apples are added. Then 8 apples are taken out. How many apples are left?
  • Step 1: 35 + 12 = 47
  • Step 2: 47 βˆ’ 8 = 39
  • Answer: 39 apples
Note

Two-step problems always need you to solve in order. Do the first step before the second step.

How do you identify a two-step problem?

Look for problems where two different actions or changes happen. Each action usually gives you one step in the solution.

Clues to Look For:
  • Words like β€œthen,” β€œafter,” or β€œin all” show more than one step.
  • If something increases and then decreases, you will add and subtract.
  • If two groups are put together and then more are taken away, you will use two operations.
Note

Always read the entire problem carefully. Circle or underline important numbers and clue words to help you plan your steps.

Examples of two-step addition and subtraction problems

Here are common types of problems you may solve with two steps using addition and subtraction.

Examples:
  • A class has 24 boys and 18 girls. 5 more students join the class. How many students are in the class now?
    Step 1: 24 + 18 = 42
    Step 2: 42 + 5 = 47
    Answer: 47 students
  • There are 60 chairs in a hall. 15 are broken, and 8 are taken away to another room. How many are left?
    Step 1: 60 βˆ’ 15 = 45
    Step 2: 45 βˆ’ 8 = 37
    Answer: 37 chairs
Note

Write down each step. This helps you keep your work clear and prevents mistakes.

Helpful strategies for solving

To solve two-step word problems, it is important to stay organized and think carefully about what the question is asking.

Steps to Remember:
  • Read the problem carefully.
  • Underline important numbers and clue words.
  • Decide which operation (addition or subtraction) to use first.
  • Solve the first step, then the second step.
  • Check your answer by reading the question again.
Note

Always answer the exact question being asked. Do not stop after the first step if the problem asks for more information.