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递等式计算.120×2÷6 480÷4÷3 560÷4×6 152+18×6 400-129÷3 (147+223)÷5 206×(900-896) (7
递等式计算.120×2÷6480÷4÷3560÷4×6152+18×6400-129÷3(147+223)÷5206×(900-896)(77-65)×58....
递等式计算.120×2÷6 480÷4÷3 560÷4×6 152+18×6 400-129÷3 (147+223)÷5 206×(900-896) (77-65)×58.
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(1)120×2÷6, =240÷6, =40; (2)480÷4÷3, =120÷3, =40; (3)560÷4×6, =140×6, =640; (4)152+18×6, =152+108, =260; (5)400-129÷3, =400-43, =357; (6)(147+223)÷5, =370÷5, =74; (7)206×(900-896), =206×4, =824; (8)(77-65)×58, =12×58, =696. |
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