(-81)÷(2.25)×(-4/9)÷16; -3/2×[-3的2次方×(-2/3)的平方-2]
问题描述:
(-81)÷(2.25)×(-4/9)÷16; -3/2×[-3的2次方×(-2/3)的平方-2]
(-81)÷(2.25)×(-4/9)÷16;
-3/2×[-3的2次方×(-2/3)的平方-2];
(-5)×(-3又6/7)+(-7)×(-3又6/7)+12×(-3又6/7);
(-3)的2次方-(1又1/2)的3次方×2/9-6÷|-2/3|
答
原式=-81×(4/9)×(-4/9)×1/16)
=36×1/36
=1.