①9又6分之5-2.19-(1.81-1/6) ②(8又6分之5-10.5×4/5)÷4又3分之一 ③3.14×0.65+4又2分之一×3.14-3又50分之7 ④18.2×25%+4/5×1/4+1/4 ⑤2014×12/47+2014÷47×35 ⑥12.5×0.0275+1.25×0.425+12.5% ⑦2又20分之7÷[5又4分之3-4.5×(20%+1/3)] ⑧10/27×[7/8-(17/20-1/8)] 速度求解,谢谢!
â¤
=2014Ã(12/47+35/47)
=2014Ã1
=2014
â¥
=0.125Ã2.75+0.125Ã4.25+0.125
=0.125Ã(2.75+4.25+1)
=0.125Ã8
=1
â¦
=2047÷(5.75-4.5Ã20ï¼
-4.5Ã1/3)
=2.35÷(5.75-0.9-1.5)
=2.35÷3.35
(é¢ç®æ¯ä¸æ¯æé®é¢)
=47/67
â¦
=20åä¹47÷(5.75-4.5Ã20ï¼
-4.5Ã1/3)
=2.35÷(5.75-0.9-1.5)
=2.35÷3.35
(é¢ç®æ¯ä¸æ¯æé®é¢)
=47/67
â§
=10/27Ã(7/8-17/20+1/8)
=10/27Ã(1-17/20)
=10/27Ã3/20
=1/18
谢谢ï¼
呵呵,是呢