无
*注意事项:
÷4÷0.25= 1÷ - ÷1= - + =
10÷1%= 10-0.89-0.11= 125%×32×25%=
18: = 93= + + + + =
①[3-( +0.75)+ ]÷
② -( - )
③13×( + )×17
④0.76× -7.6×0.28+76×7%
⑤(1+ + )×( + + )-(1+ + + )×( + )
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