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Grade 2 - Number
Standard 2.N.8 - Practice subtracting zero and all from a number. Recognize the similar numbers in subtracting all and zero.
Demonstrate and explain the effect of adding zero to, or subtracting zero from, any number. • Add zero to a given number, and explain why the sum is the same as the given number. • Subtract zero from a given number, and explain why the difference is the same as the given number.