怎样简便就怎样算.
3280÷16+60018.75﹣6.2﹣3.8 25×(100+4)
3.75+4.5÷0.18×0.25 25×32×125(7.6×15+2.4×5)÷126.
递等式计算,能简算的要简算.
①4.8×3.9+6.1×4
②18 ﹣(2.35+8.6)
③320×125
④1.7+3.98+5.
能简便计算的用简便方法计算.÷
×
×
+0.25×
﹣
(
+
)÷
×
+
÷
÷[(
+
)×
]
+
+
+
+…
.
脱式计算.
0.25×+2.5%9.6﹣11÷7+
×4
(×
+
)÷
÷(
﹣
×
)
计算(能简算的要简算)
32×0.25×12.5=10÷[﹣(
÷
+
)]= 12.85﹣1.17﹣8.83+1.15=
÷[(
+
)÷
]= 75%×3.6+0.75×
+
=(20.2×0.4+7.88)÷4.2=