脱式计算.2800÷100+789 ...
答案:2 悬赏:30 手机版
解决时间 2021-04-05 10:11
- 提问者网友:了了无期
- 2021-04-04 09:45
脱式计算.2800÷100+789 (947-599)+76×64.
最佳答案
- 五星知识达人网友:十鸦
- 2021-04-04 10:38
(1)2800÷100+789,
=28+789,
=817;
(2)(947-599)+76×64,
=348+4864,
=5212.
=28+789,
=817;
(2)(947-599)+76×64,
=348+4864,
=5212.
全部回答
- 1楼网友:夜风逐马
- 2021-04-04 10:58
(1)2800÷100+789
=28+789
=817
(2)(947-599)+7×64
=348+448
=796
(3)36×(15-276÷23)
=36×(15-12)
=36×3
=108
(4)(93+25×21)×9
=(93+525)×9
=618×9
=5562
(5)723-(521+504)÷25
=723-1025÷25
=723-41
=682
(6)(39-21)×(396÷6)
=18×66
=1188
(7)507÷13×63+498
=39×63+498
=2457+498
=2955
(8)384÷12+3×31
=32+93
=125
(9)[37-(7+6)]×30
=[37-7-6]×30
=24×30
=720
(10)16×[(17-8)÷3]
=16×[9÷3]
=16×3
=48
(11)28×(5+96÷32)
=28×(5+3)
=28×8
=224
(12)81÷[(72-54)×9]
=81÷[18×9]
=81÷162
=0.5
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