①7.63×5.4＋2.37×5.4－12.5×5.35×0.8
(7.63+2.37)5.4-53.5=0.5
②11×22＋0.22×3300＋330×4.4
242+726+1452=2420
简便运算,①7.63×5.4＋2.37×5.4－12.5×5.35×0.8 ②11×22＋0.22×3300＋330×4
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