100加200除25乘100等於多少
100+200÷25*100
=100+8*100=900
(-0.25)乘(-7分之4)乘4乘(-7)等於幾,
(-0.25)*(-4/7)* 4 *(-7)= - 0.25 * 4/7 * 4 * 7 = -(0.25 * 4)*(4/7 * 7)= - 1 * 4 = -4
0.25^13乘(-2)^25等於幾
0.25^13乘(-2)^25
=2^(-26)*(-2)^25
=-1/2*2^(2)^(-25)*2^25
=-1/2