(1)[2/3-1/4-3/8+5/24]×48

问题描述:

(1)[2/3-1/4-3/8+5/24]×48
(2)25×3/4-(-25)×1/2+25×(-1/4)
(3)-2四次方+3×(-1)两千次方-(-2)²
(4)-1六次方-[1/2-1]×[-1/3]×(2-2三次方)
(5)[1又21/24-(3/8+1/16-3/4]×(-4)²]÷5

1、(16/24-6/24-9/24+5/24)×48=6/24×48=12
2、(25×3+25×2-25)×1/4=0
3、-16+3-4=-17
4、-1-(-1/2)×(-1/3)×(-6)=0
5、【45/24-(6/16+1/16-12/16)×16】÷5=(45/24+5)÷5=33/24