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To get a double of a number, we add the same number to itself. For example, double of 2 is 2 + 2 = 4. Example: 1 Ninja add 1 Ninja is 2 Ninjas. It is easy to remember the numbers that we get by doubling one-digit numbers. Join the Ninjas as they learn to double numbers. Have fun counting and adding as you become more confident doubling numbers.
The Using Doubles strategy involves decomposing one addend to make a double with the other addend.
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