计算下面各题:(能简算的要简算)6.7+25+3.3+75 103×12 14.85-(4.85+2.5) 15×99+15 (125+25
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解决时间 2021-02-26 14:59
- 提问者网友:缘字诀
- 2021-02-25 17:40
计算下面各题:(能简算的要简算)6.7+25+3.3+75 103×12 14.85-(4.85+2.5) 15×99+15 (125+25
最佳答案
- 五星知识达人网友:怀裏藏嬌
- 2021-02-25 19:01
(1)6.7+25+3.3+75,
=(6.7+3.3)+(25+75),
=10+100,
=110;
(2)103×12,
=(100+3)×12,
=100×12+3×12,
=1200+36,
=1236;
(3)14.85-(4.85+2.5),
=14.85-4.85-2.5,
=100-2.5,
=7.5;
(4)15×99+15,
=15×(99+1),
=15×100,
=1500;
(5)(125+25)×8,
=125×8+25×8,
=1000+200,
=1200;
(6)2000÷125÷8,
=2000÷(125×8),
=2000÷1000,
=2;
(7)300-125+30×5,
=300-125+150,
=175+150,
=325;
(8)432÷12÷(57-51),
=432÷12÷6,
=36÷6,
=6;
(9)704-(53-18)×12,
=704-35×12,
=704-420,
=284;
(10)458-75×4+132,
=458-300+132,
=158+132,
=290;
(11)(459-27×5)÷36,
=(459-135)÷36,
=324÷36,
=9;
(12)(200+350)÷11×38,
=550÷11×38,
=50×38,
=1900.
=(6.7+3.3)+(25+75),
=10+100,
=110;
(2)103×12,
=(100+3)×12,
=100×12+3×12,
=1200+36,
=1236;
(3)14.85-(4.85+2.5),
=14.85-4.85-2.5,
=100-2.5,
=7.5;
(4)15×99+15,
=15×(99+1),
=15×100,
=1500;
(5)(125+25)×8,
=125×8+25×8,
=1000+200,
=1200;
(6)2000÷125÷8,
=2000÷(125×8),
=2000÷1000,
=2;
(7)300-125+30×5,
=300-125+150,
=175+150,
=325;
(8)432÷12÷(57-51),
=432÷12÷6,
=36÷6,
=6;
(9)704-(53-18)×12,
=704-35×12,
=704-420,
=284;
(10)458-75×4+132,
=458-300+132,
=158+132,
=290;
(11)(459-27×5)÷36,
=(459-135)÷36,
=324÷36,
=9;
(12)(200+350)÷11×38,
=550÷11×38,
=50×38,
=1900.
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