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Mathematics, 13.10.2020 02:01 jdsfdujfi1598

Several properties are used to evaluate this expression. Identify the property used in each step. 21 + (36 + 0 + 19)
21 + (36 + 19)
21 + (19 + 36)
(21 +19) + 36:
40 + 36
76

Several properties are used to evaluate this expression. Identify the property used in each step.

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