Basic Math Facts and Number Bonds
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Questions and Answers

What is 5 + 3?

  • 6
  • 7
  • 9
  • 8 (correct)
  • What are the number bonds for 12?

  • 4 + 6, 5 + 5, 6 + 6
  • 3 + 9, 4 + 8, 5 + 7 (correct)
  • 1 + 11, 2 + 10, 3 + 9
  • 2 + 10, 3 + 9, 4 + 8
  • What is the counting on strategy for 3 + 4?

  • Start with 4 and count back 3
  • Start with 3 and count on 4 (correct)
  • Start with 4 and count on 3
  • Start with 3 and count back 4
  • What is the counting back strategy for 9 - 2?

    <p>Start with 9 and count back 2</p> Signup and view all the answers

    What is the making ten strategy for 7 + 3?

    <p>Make ten by adding 3 to 7</p> Signup and view all the answers

    What is 7 - 2?

    <p>5</p> Signup and view all the answers

    What are the number bonds for 8?

    <p>1 + 7, 2 + 6, 3 + 5</p> Signup and view all the answers

    What is the counting on strategy for 2 + 5?

    <p>Start with 2 and count on 5</p> Signup and view all the answers

    What is the making ten strategy for 6 + 4?

    <p>Make ten by adding 2 to 8</p> Signup and view all the answers

    Study Notes

    Basic Facts

    • Addition and subtraction facts within 20, such as 5 + 3 = 8, 7 - 2 = 5
    • Focus on memorization of basic facts to build fluency
    • Examples:
      • Addition: 1 + 1 = 2, 2 + 2 = 4, 3 + 3 = 6
      • Subtraction: 5 - 1 = 4, 8 - 2 = 6, 9 - 3 = 6

    Number Bonds

    • A number bond is a pair of numbers that add up to a certain number
    • Example: 3 + 7 = 10, so 3 and 7 are number bonds for 10
    • Number bonds help with mental math and building fluency with addition and subtraction facts
    • Examples:
      • Number bonds for 10: 1 + 9, 2 + 8, 3 + 7, 4 + 6, 5 + 5
      • Number bonds for 15: 5 + 10, 6 + 9, 7 + 8

    Counting On

    • Counting on is a strategy used to solve addition problems
    • Start with the first number and count on the second number
    • Example: 5 + 3 = ?, start with 5 and count on 3: 5, 6, 7, 8
    • Counting on helps build fluency with addition facts and promotes mental math

    Counting Back

    • Counting back is a strategy used to solve subtraction problems
    • Start with the first number and count back the second number
    • Example: 8 - 3 = ?, start with 8 and count back 3: 8, 7, 6, 5
    • Counting back helps build fluency with subtraction facts and promotes mental math

    Making Ten

    • Making ten is a strategy used to solve addition and subtraction problems
    • Focus on making a ten by adding or subtracting numbers to get close to ten
    • Example: 8 + 2 = ?, make ten by adding 2 to 8: 8, 9, 10
    • Making ten helps build fluency with addition and subtraction facts and promotes mental math

    Basic Facts

    • Memorize addition and subtraction facts within 20 to build fluency
    • Examples of basic addition facts: 1 + 1 = 2, 2 + 2 = 4, 3 + 3 = 6
    • Examples of basic subtraction facts: 5 - 1 = 4, 8 - 2 = 6, 9 - 3 = 6

    Number Bonds

    • Number bonds are pairs of numbers that add up to a specific number
    • Example: 3 and 7 are number bonds for 10 because 3 + 7 = 10
    • Number bonds help with mental math and fluency in addition and subtraction facts
    • Examples of number bonds:
      • For 10: 1 + 9, 2 + 8, 3 + 7, 4 + 6, 5 + 5
      • For 15: 5 + 10, 6 + 9, 7 + 8

    Counting On

    • Counting on is a strategy for solving addition problems
    • Start with the first number and count on the second number
    • Example: 5 + 3 = ?, start with 5 and count on 3: 5, 6, 7, 8
    • Counting on builds fluency with addition facts and promotes mental math

    Counting Back

    • Counting back is a strategy for solving subtraction problems
    • Start with the first number and count back the second number
    • Example: 8 - 3 = ?, start with 8 and count back 3: 8, 7, 6, 5
    • Counting back builds fluency with subtraction facts and promotes mental math

    Making Ten

    • Making ten is a strategy for solving addition and subtraction problems
    • Focus on making a ten by adding or subtracting numbers to get close to ten
    • Example: 8 + 2 = ?, make ten by adding 2 to 8: 8, 9, 10
    • Making ten builds fluency with addition and subtraction facts and promotes mental math

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    Description

    Test your knowledge of basic addition and subtraction facts within 20 and understand number bonds. Fluency with these fundamentals is crucial for mental math and problem-solving skills.

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