1、95.×8+0.4÷0.125
=(90+5)×8+4/10÷125/1000
=720+40+2/5÷1/8
=760+2/5×8
=760+16/5
=763又5分之1
2、100.65-45.63+9.35-14.37 这个题目你打错了
= (100.65+9.35)-(45.63+14.37)
=110-60
=50
3、25×2/9×3/5×9/10
=25×3/5×2/9×9/10
=15×1/5
=3
4、1.44÷[1.2×（0.742+0.458）]
=1.44÷(1.2×1.2)
=1.44÷1.44
=1