①6.5×8+3.5×8﹣44②907+907×9③(999+111)÷[56×(﹣
)]
④56×99⑤168.1÷(4.3×2﹣0.4)⑥[2﹣(11.9﹣8.4×1)]÷1.3.
脱式计算(能简算的要简算)﹣(
+
)[1﹣(
+
)]÷
×58+
×42
×
×
﹣
×6+
÷
180÷2.5÷4.
计算
(1)﹣(0.375×45+1÷3.75÷1.6)÷0.4
(2)(7﹣6
)÷[2
+(4﹣2
)÷1.35].
57.26﹣(5.26﹣1.5)64×1.25×2.5(+
)÷
4.8×3.9+6.1×4
12×(+
﹣
)(
+
)÷
+
34.5×9.23﹣34.5+1.77×34.5 2﹣
÷
﹣
.
计算下面各题,能简算的要简算.
①[3.2×(1﹣58 )+335]×2112②137+2415+447+3215
③4397×99④1.8×25%+2.2×25%