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.
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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