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计算题9999×7778+3333×6666(29×0.48-4.77+29×0.52-5.23)×997.2×4.5×8.1÷(1.8×1.5×2.7)8.16-3.875-2.125-1.16.
题目详情
计算题
9999×7778+3333×6666
(29×0.48-4.77+29×0.52-5.23)×99
7.2×4.5×8.1÷(1.8×1.5×2.7)
8.16-3.875-2.125-1.16.
9999×7778+3333×6666
(29×0.48-4.77+29×0.52-5.23)×99
7.2×4.5×8.1÷(1.8×1.5×2.7)
8.16-3.875-2.125-1.16.
▼优质解答
答案和解析
(1)9999×7778+3333×6666
=9999×7778+3333×3×2222
═9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000;
(2)(29×0.48-4.77+29×0.52-5.23)×99
=[(0.48+0.52)×29-(4.77+5.23)]×99
=[1×29-10]×99
=19×(100-1)
=19×100-19
=1881;
(3)7.2×4.5×8.1÷(1.8×1.5×2.7)
=
=36;
(4)8.16-3.875-2.125-1.16
=8.16-1.16-3.875-2.125
=(8.16-1.16)-(3.875+2.125)
=7-6
=1
=9999×7778+3333×3×2222
═9999×7778+9999×2222
=9999×(7778+2222)
=9999×10000
=99990000;
(2)(29×0.48-4.77+29×0.52-5.23)×99
=[(0.48+0.52)×29-(4.77+5.23)]×99
=[1×29-10]×99
=19×(100-1)
=19×100-19
=1881;
(3)7.2×4.5×8.1÷(1.8×1.5×2.7)
=
7.2×4.5×8.1 |
1.8×1.5×2.7 |
=36;
(4)8.16-3.875-2.125-1.16
=8.16-1.16-3.875-2.125
=(8.16-1.16)-(3.875+2.125)
=7-6
=1
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