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Mastering Addition and Subtraction: Learn When to Add or Subtract!

Learn to differentiate between addition and subtraction with helpful clues and patterns. Solve problems, identify the sequence, and practice with challenges. Become confident in your mathematical skills!

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Mastering Addition and Subtraction: Learn When to Add or Subtract!

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  1. Do I add or subtract?? How do I know when I should add? How do I know that I am supposed to subtract?

  2. 3 + 4 = 7 7 + 2 = 9 4 + 2 = 6 5 + 7 = 12 7 - 2 = 5 9 - 2 = 7 3 - 1 = 2 6 - 3 = 3 Look at these problems. What is the pattern?

  3. The number starts small and gets larger. The largest number is at the end. Clue words: in all more together The number starts big and gets smaller. The largest number is at the beginning. Clue words: away left Adding Subtracting

  4. Try these! • 7 ____ 2 = 9 • Start at 7. • It gets larger! (7 went to 9) • The largest number (9) is at the end. • We ADD!!!

  5. Can you do this one? • 8 ______ 2 = 6 • Start at 8. • It gets smaller! (8 went to 6) • The largest number is at the beginning. • We SUBTRACT!!!

  6. More challenges… • 5 _____ 5 = 10 • 5 _____ 2 = 3 • 6 _____ 2 = 8 • 4 _____ 1 = 3

  7. Adding The number gets larger. The largest number is at the end. Clue words: in all together more Subtracting The number gets smaller. The largest number is in the beginning. Clue words: away left Let’s review…

  8. Congratulations!! • You are an expert! • Use these rules to help you decide whether to ADD or subtract. • Don’t get tricked by the math monster!

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