递等式计算(能简算的要简算)(8.5-4)×(0.32÷1.6) 90.7×99+90.7 7 15 ×9-6÷
递等式计算(能简算的要简算)(8.5-4)×(0.32÷1.6)90.7×99+90.7715×9-6÷1571318÷(56+23×38)...
递等式计算(能简算的要简算)(8.5-4)×(0.32÷1.6) 90.7×99+90.7 7 15 ×9-6÷ 15 7 13 18 ÷( 5 6 + 2 3 × 3 8 )
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(1)(8.5-4)×(0.32÷1.6) =4.5×0.2, =0.9; (2)90.7×99+90.7 =(99+1)×90.7, =100×90.7, =9070; (3)
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