(384)1600﹣217﹣483,
(385)163×8+137×8,
(386)4200÷25÷4,
(387)100﹣28+72,
(388)200﹣28×5,
(389)297﹣28﹣72,
(390)4×89×25,
(391)78+99+22,
(392)900÷25÷4,
(393)329×101,
(394)54×98+46×98,
(395)3000÷125,
(396)800÷25,
(397)(125×25)×8,
(398)57×15+42×15+15,
(399)373+733+627,
(400)623﹣187﹣213+377,
(401)98+99×98,
(402)102×36,
(403)276+428+124+572,
(404)375÷(25﹣10)×15,
(405)125×43﹣25×43,
整数简便运算---
13
(406)32×202,
(407)285×38+15×38,
(408)120×25,
(409)490÷[(215﹣208)×4],
(410)95×101﹣95,
(411)7614﹣(2164+871),
(412)578+(791+422)+309,
(413)24×125×7,
(414)536×64﹣64-64×35,
(415)25×99×4,
(416)121+131+141+151+161+171+181,
(417)(80﹣1)×125,
(418)45×54+45×45+45,
(419)(543+543+543+543)×25,
(420)2300﹣165﹣35,
(421)25×204,
(422)125×(8+4),
(423)3700÷25÷4,
(424)56×32﹣46×32,
(425)99×78+78,
(426)125×103﹣125×3,
(427)2700﹣425﹣175,
(428)125×88,
(429)41+127+59+173,
(430)1300÷25÷4,
(431)156×l0l﹣156,
(432)25×71×4,
(433)135×99,
(434)49×99+49,
(435)5620÷(562×5),
(436)37+125+63+175,
(437)285+195+105+415,
(438)643﹣48﹣12﹣40,整数简便运算---
14
(439)25×32,
(440)8×48×125,
(441)5400÷45÷2,
(442)360÷45,
(443)148×8+152×8,
(444)99×34,
(445)25×201﹣25,
(446)1268+227+473+132,
(447)202×12-24,
(448)789﹣511﹣89,
(449)735﹣238﹣162,
(450)356+83+144,
(451)53×99,
(452)199×39+39,
(453)7826﹣(826﹣1300),
(454)87×99+87,
(455)125×88,
(456)54×102,
(457)125×(4+8),
(458)36×111+888×8,
(459)65×34+34×34+34,
(460)25×13×4,
(461)567+142+558,
(462)546﹣378﹣162,
(463)1458+999,
(464)796+643﹣596,
(465)475﹣303,
(466)265+318+35,
(467)25×387×4,
(468)264+(37+136)+163,
(469)76×102,
(470)56×38+38+43×38,
(471)2358+998,
整数简便运算---
15
(472)5927﹣(458+627),
(473)3752﹣698,
(474)2000﹣586﹣114
(475)67×101﹣67
(476)125×48
(477)34×126+37×73+37
(478)85+137+63+215,
(479)885﹣(301﹣115),
(480)40×(25+125),
(481)99×123,
(482)64×125,
(483)79999+7999+799+79,
(484)630÷45,
(485)168×68+33×168﹣168,
(486)126×72,
(487)875+659+125
(488)813﹣256﹣344
(489)77+649﹣649
(490)99×7+7
(491)459×802+197×459+459,
(492)125×(8×2)+100,
(493)230×24+240×77,
(494)46×101﹣146,
(495)(841﹣41)÷25×4,
(496)135+39+55+61,
(497)45×201,
(498)2000÷25÷8,
(499)17×43﹣43×7,
(500)278﹣122﹣78,
(501)2000÷125÷8,
(502)800﹣138﹣162,
(503)99×38+38,
(504)25×33×4,
整数简便运算---
16
(505)(125+70)×8,
(506)101×87,
(507)312×4+188×4,
(508)28×225﹣2×225﹣6×225,
(509)389+327+211
(510)608﹣154﹣146
(511)587﹣98
(512)125×53×80,
(513)150+(140×8﹣252),
(514)178×78﹣78×78,
(515)771﹣169+229﹣431,