Mathematics, 15.01.2021 07:10, Suttyyyyyybear9275

Which shows the best use of the associative and commutative properties to make simplifying 2.4 + 13 – 5 + 3.6 +7 easier?
O A. (2.4 + 13) + (-5 +3.6 + 7)
O B. (2.4 + (-5) + 13) + (7 + 3.6)
O C. (7+ 2.4 + 13) + [3.6+ (-5)]
O D. (2.4+ 3.6) + [13 +7+(-5)]

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Which shows the best use of the associative and commutative properties to make simplifying 2.4 + 13...