简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36)-19又24/25*(-5)

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简便计算 (-98)*(-0.125)+98*1/8*(-4/7) (-1/12-1/36+3/4-1/6)*(-36) -19又24/25*(-5)
简便计算 (-98)*(-0.125)+98*1/8*(-4/7)
(-1/12-1/36+3/4-1/6)*(-36)
-19又24/25*(-5)

简便计算
(-98)*(-0.125)+98*1/8*(-4/7)
=98*(0.125-1/8*4/7)
=98*0.125(1-4/7)
=98*0.125*3/7
=42*0.125
=(40+2)*0.125
=5+0.25
=5.25
(-1/12-1/36+3/4-1/6)*(-36)
=3+1-27+6
=-17
-19又24/25*(-5)
=(19+24/25)*5
=95+4.8
=99.8