
递等式计算(能简便的要简便)
①(
+
)÷
②2.5×13×0.42③5.3×12﹣33.46÷0.35
④
÷[(
+
)×
]⑤9.34﹣(2.34+0.49)⑥
+
×19.
计算,能简算的要简算.
805×101﹣805(1﹣
+
)×241.25×2.5×32
[7÷(
﹣
)]×
45×102
÷(3﹣
﹣
)
脱式计算.(能简算的要简算)
(1)8470﹣104×65(2)168.1÷(4.3×2﹣0.4)(3)(4÷7+
)×5﹣
(4)1110÷[56×(
﹣
)](5)2.5×(1.9+1.9+1.9+1.9)(6)3.64÷4+4.36×25%
用递等式计算,能简算的要简算.
1485+290÷580.125×32×0.251080﹣63.58﹣36.42
(
+
)×24168.1÷(4.3×2﹣0.4)(
+
)÷(
﹣
)
计算能简算的简算
1.8×
+2.2×25% (
﹣
×
)÷
÷
﹣
×
+
÷4﹣
(
﹣
+
)×12
÷(
×
)﹣
.