来自吕志民的问题
95÷(64-45)6.5×(4.8-1.2×4)(284+16)×(512-8208÷18)32.52-(6+9.728÷3.2)×2.5.
95÷(64-45)
6.5×(4.8-1.2×4)
(284+16)×(512-8208÷18)
32.52-(6+9.728÷3.2)×2.5.
1回答
2020-04-07 22:59
95÷(64-45)6.5×(4.8-1.2×4)(284+16)×(512-8208÷18)32.52-(6+9.728÷3.2)×2.5.
95÷(64-45)
6.5×(4.8-1.2×4)
(284+16)×(512-8208÷18)
32.52-(6+9.728÷3.2)×2.5.
(1)95÷(64-45)
=95÷19
=5;
(2)6.5×(4.8-1.2×4)
=6.5×(4.8-4.8)
=6.5×0
=0;
(3)(284+16)×(512-8208÷18)
=300×(512-456)
=300×56
=16800;
(4)32.52-(6+9.728÷3.2)×2.5
=32.52-(6+3.04)×2.5
=32.52-9.04×2.5
=32.52-22.6
=9.92.