
用递等式计算.①576÷3÷4 ②17×34-278 ③85×(28+32) ④(601-246)÷5
用递等式计算.①576÷3÷4②17×34-278③85×(28+32)④(601-246)÷5....
用递等式计算.①576÷3÷4 ②17×34-278 ③85×(28+32) ④(601-246)÷5.
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①576÷3÷4,
=576÷(3×4),
=576÷12,
=48;
②17×34-278,
=578-278,
=300;
③85×(28+32),
=85×60,
=5100;
④(601-246)÷5,
=355÷5,
=71.
=576÷(3×4),
=576÷12,
=48;
②17×34-278,
=578-278,
=300;
③85×(28+32),
=85×60,
=5100;
④(601-246)÷5,
=355÷5,
=71.
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