脱式计算 2800÷100+789 (947-599)+7×64 36×(15-276÷23) (93+25×21)×9 723-(521+504)
脱式计算2800÷100+789(947-599)+7×6436×(15-276÷23)(93+25×21)×9723-(521+504)÷25(39-21)×(396÷...
脱式计算 2800÷100+789 (947-599)+7×64 36×(15-276÷23) (93+25×21)×9 723-(521+504)÷25 (39-21)×(396÷6) 507÷13×63+498 384÷12+3×31 [37-(7+6)]×30 16×[(17-8)÷3] 28×(5+96÷32) 81÷[(72-54)×9].
展开
1个回答
展开全部
(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
=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
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询