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Interpret addition as adding to

Addition represents a situation in which an initial whole-number quantity is increased by a known amount: the first addend is the starting amount, the second addend is what is added, and the sum is the resulting total. For sums within 20, this meaning can be shown with objects, drawings, a number line, or equations such as 7+3=107+3=10, supporting the interpretation and solution of change situations; signed numbers, fractions, and generalized algebraic treatments are not included.

Detailed Explanation: Interpret addition as adding to

Addition can show that a starting amount gets bigger.

  • The first number tells how many you start with.
  • The second number tells how many are added.
  • The answer tells how many you have now.

Example: Mia has 6 stickers. She gets 4 more stickers. How many stickers does she have now?

  1. Start with 6 stickers:
    ● ● ● ● ● ●

  2. Add 4 more stickers:
    ● ● ● ●

  3. Count them all:
    ● ● ● ● ● ● ● ● ● ●

  4. Write an addition equation:

6+4=106+4=10

Mia has 10 stickers now. The 66 is the starting amount, the 44 is what was added, and the 1010 is the total.

Learn by doing: Interpret addition as adding to

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    Number Line - Addition Positive Integers, Equation to Movement Image

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