The result of addition is called _____. - sum, When 0 is added to any number the sum is the ___________ - number itself., 127 + 1 = _____ - 128, 4 + 19 = 19 + ______ - 4, 800 + ______ = 1000 - 200, ___ + 40 = 100 - 60, 143 + ____ = 144 - 1, 300 + 100 + _____ = 500 - 100, ____ + 200 = 1000 - 800, 100 more than the greatest 3-digit number is _____ - 1099,

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