计算下面各题,能简算的要简算.
(1)(
+
)×15 (2)
×
+
×
(3)
×
×
(4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97
(7)0.36×101 (8)0.36×98 (9)
﹣
×
(10)
+
×
(11)
+
×
(12)
﹣
×
(13)90×
(14)86×
(15)
×
﹣
×
(16)0.36×101﹣0.36 (17)0.36×99+0.36 (18)
×
﹣
.