Question

简便计算要过程（-8分之7)*25*(1又7分之11）*（-4） （-8分之7)*25*(1又7分之11）*（-4） （

Answer 1

(-7/8) X 25 X (1+ 11/7) X (-4)

= 7/8 X 4 X 25 X 18/7

= 7/2 X 18/7 X 25

= 9 X 25

= (4 + 4 + 1) X 25

= 100 + 100 + 25

= 225

(-3.59) X (-7/22) - 2.41 X (-7/22) + 6 X (-7/22)

= (-7/22) X ( -3.59 - 2.41 + 6 )

= (-7/22) X ( 6 - 6 )

= -7/22 X 0

= 0

(-14) X (3/4) - 0.34 X (3/7) + (1/4) X (-14) + (4/7) X (-0.34)

= (-14) X 3/4 + 1/4 X (-14) + 4/7 X (-0.34) + (-0.34) X 3/7

= (-14) X 4/4 + 7/7 X (-0.34)

= -14 - 0.34

= -14.34