题目

怎样算简便就怎样算 ①528+87+72+113 ②960÷(15+25)×8 ③540÷36 ④627-168-32 ⑤22×60+60×18 ⑥16×198 答案:解:①528+87+72+113 =(528+72)+(87+113) =600+200 =800 ②960÷(15+25)×8 =960÷40×8 =24×8 =192 ③540÷36 =540÷9÷4 =60÷4 =15 ④627-168-32 =627-(168+32) =627-200 =427 ⑤22×60+60×18 =(22+18)×60 =40×60 =2400 ⑥16×198 =16×(200-2) =16×200-16×2 =3200-32 =3168
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