三年级脱式计算练习题206-97+5858×(61-23)834-17×35488÷8-27(79+68)÷7==========462-(137-59)456÷8×67256+389-278(613-578)×2723×24÷8==========56×37-678201-495÷578×35÷7(73-37)×89729÷(102-93)==========357÷7-29(47+29)×29412-67+7814×(39+27)20+80×7==========(91-12)×23278+22×39203-(312-279)567+891÷9357÷7-37==========671-487+89341-236÷4(37+19)×78523-378-89309÷(41-38)==========901-354÷6(425-257)÷8160÷5×57951-23×27270÷6÷5==========37+29×358×(78÷6)564-18×2420+180÷548×(32-17)==========1165-(42+58)73×12÷645×(63÷9)(115–87)×25========714÷(103–96)384–312÷3412+750÷5×36======(412+750÷5)×36750÷5+410×36(750+410)÷5×36======35×(329-129)35×329-129×355274÷3×37======43×36÷9825÷5×82745+458-829861÷7×58========439+46×37248÷4×1867×(96÷6)25×17-120========(450-175)÷5268+29×6517×36÷3948-13×52========315-345÷3574÷(125-118)17×36÷3560-12×2