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)
^ 7x5=35
(b) (7+2)(10-3)
^ (9) (7)
9x7 = 63
^ 7x5=35
(b) (7+2)(10-3)
^ (9) (7)
9x7 = 63
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