用递等式计算.
(1)2184﹣[(44×19+44)÷5] (2)450+(8.16+6.84)÷0.63
(3) (4)[1﹣(+)×2]÷
(5)(4﹣7.5×)÷ (6)÷[(+0.875)×]﹣.
计算下面各题,能简算的要简算.
(1)25×1.25×32
(2)7.8×3.4+7
(3)()×7×5
(4)()÷+
(5)5400﹣2940÷28×27
(6)÷[(﹣)÷].
下面各题,怎样算简便就怎样算
4296﹣1296÷12+812 5.1÷0.17+2.6×6 ×÷+
×+÷ 12.5×0.32×25 ÷(+)×.
用递等式计算,能简算的要简算:
9×+×9 +(+)×8 (5.6﹣1.6÷2)×2.5
(++)÷ 1064﹣780÷0.75+8.25 ÷2.25.
试题篮
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