计算下列各题(能简算的一定要简算) 480÷12-24×1.5 11.7+133+3.3+23 17×114÷(16+3
答案:2 悬赏:70
解决时间 2022-01-01 06:36
- 提问者网友:相思故
- 2021-12-31 16:44
计算下列各题(能简算的一定要简算掸绩侧啃乇救岔寻唱默) 480÷12-24×1.5 11.7+133+3.3+23 17×114÷(16+34) 509×[2.5-4.5×(15+13)]
最佳答案
- 二级知识专家网友:邪性洒脱
- 2021-12-31 17:53
(1)480÷12-24×1.5,
=40-36,
=4;
(2)11.7+133+3.3+23,
=(11.7+3.3)+(133+23),
=15+5,
=20;
(3)17×114÷(16+34),
=17×114÷1112,
=17×(114×1211),
=17×3,
=37;
(4)509×[2.5-4.5×(15+13)],
=509×[2.5-(4.5×15+4.5×13)],
=509×[2.5-(0.9+1.5)],
=509×[2.5-2.4],
=509×0.1,
=59.
=40-36,
=4;
(2)11.7+133+3.3+23,
=(11.7+3.3)+(133+23),
=15+5,
=20;
(3)17×114÷(16+34),
=17×114÷1112,
=17×(114×1211),
=17×3,
=37;
(4)509×[2.5-4.5×(15+13)],
=509×[2.5-(4.5×15+4.5×13)],
=509×[2.5-(0.9+1.5)],
=509×[2.5-2.4],
=509×0.1,
=59.
全部回答
- 1楼网友:高冷不撩人
- 2021-12-31 19:05
56+5.6×3.3
=5.6×10+5.6×3.3
=5.6×(10+3.3)
=5.6×13.3
=74.48
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