方程里,先算加减还是先算乘除 算式中先算加减还是先算乘除
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1+2*(4-3)/5*[(7-6)/8*9]
=1+2*1/5*[1/8*9]
=1+2/5*[0.125*9]
=1+0.4*1.125
=1+0.45
=1.45
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绛旓細涓嶈兘鍟,鍏堜箻闄鍚鍔犲噺,鏈夋嫭鍙鍏堢畻鎷彿.
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