用简便方法计算下列各题。(1)136&tim
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用简便方法计算下列各题。(1)136×5÷8 (2)125×(16÷10)(3)4032÷(8×9)(4)225÷9÷5(5)(81+72)÷9
参考答案:
(1) 136×5÷8 =136÷8×5 =17×5 =85 (2) 125×(16÷10) =125×16÷10 =2000÷10 =200 (3) 4032÷(8×9)