Write five situations for the following where brackets would be necessary
(A) 7(8-3) (B)(7+2)(10-3)
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A.)7(8-3)
=7{8+(-3)}
=7(8)+ 7(-3)
=56+ (-21)
=56-21
=35
B.) (7+2)(10-3)
= 7(10-3)+2(10-3)
=7(7)+2(7)
=7{(7)+(2)}
=7{7+2}
=7×9
=63
A.)7(8-3)
=7{8+(-3)}
=7(8)+ 7(-3)
=56+ (-21)
=56-21
=35
B.) (7+2)(10-3)
= 7(10-3)+2(10-3)
=7(7)+2(7)
=7{(7)+(2)}
=7{7+2}
=7×9
=63
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