(1)280+840÷24×5
(2)84.7×7-54.7×7
(3)28-(3.4+1.25×2.4)
(4)36.72÷4.25×9.9
(5) 3.26×0.52+3.26×0.48+7.05(6) 2.55×7.1+2.45×7.1(8)87.4×27.6+73.4×87.4-87.4(9)777×9+1111×3
(10)24÷2.4-2.5×0.8
(11)[10-(0.2+6.37÷0.7)]÷0.01(12)0.8×〔15.5-(3.21+5.79)〕(13)(4121+2389)÷7
(14) 5.7×101
(15) 4.2×(12.5-7.5÷0.75)(16)(31.8+3.2×4)÷5
(17)30.8÷[14-(9.85+1.07)] (18)671×15-974
(19)31.5×4÷(6+3) (21) 2.881÷0.43-0.24×3.5(22)2÷2.5+2.5÷2
(23) 3.416÷(0.016×35)
(24)20×[(2.44-1.8)÷0.4+0.15](25)194-64.8÷1.8×0.9
(26)0.8×[(10-6.76)÷1.2]
(27)19.4×6.1×2.3 (28) 5.67×0.2-0.62 (29)18.1×0.92+3.93 (30)0.0430.24+0.875 (31)0.4×0.7×0.25 (32)0.75×102(33)100-56.23
(34)0.78+5.436+1
(35)469×12+1492
(36)[60-(9.5+28.9)]÷0.18(37)0.64×25×7.8+2.2(38)85×(95-1440÷24)
(40)37.4-(8.6+7.24-6.6)(41)37.85-(7.85+6.4)(42)(93+25×21)×9
(43)384÷12+23×371 (44)(39-21)×(396÷6) (45)156×[(17.7-7.2)÷3](46)[37.85-(7.85+6.4)] ×30 (47)28×(5+969.9÷318)
(48)81÷[(72-54)×9]
(49)57×12-560÷35
(50)848-640÷16×12
(51)2800÷100+789
(52)960÷(1500-32×45)
(53)[192-(54+38)]×67 (54)138×25×4
(55)(12+24+80)×50
(56)704×25 (58)32×(25+125)(59)178×101-178 (60)84×36+64×84(61)75×99+2×75(62)83×102-83×2
(63)98×199
(64)25×(24+16)
(65)123×18-123×3+85×123 (66)79×42+79+79×57
(67)7300÷25÷4(68)15.39×4.62+5.38×15.39 (69) 4.3+3.91÷(22-19.7)(70) 4.3+3.91÷(22-19.7)(71) 2.9×1.4+2×0.16
(72)200-(3.05+7.1)×18
(73)30.8÷[14-(9.85+1.07)](74)(2.44-1.8)÷0.4×20
(75) 2.9×1.4+2×0.16
(76) 5.4×2.08+66×0.208-2.08(77)30.8÷[14-(9.85+1.07)] (78)(12.5+1.25+0.125)×80 (79)32×125×2.5
(80)94÷(6.84×8.5-31.46÷0.55)(81)9.2+9. 728÷3.2×1. 5 (82)10.5÷(5. 1-4 . 4)+18.25
(84)[(8.3-6.8)×0.9+3.65]÷2.5 (85)12.25-3.1+0.85-6.17
(86)(1.9-1.9×0.9)÷(3.8-2.8)(87) 2.65×1.7+1.35×1.7 (89)9.1 - 33.6÷5.6×1.5
(90)(0.62 + 7.638÷20.1)÷
0.25
(91) 1.8 - (7.5 - 2.25)÷3.75(92) 2.706÷[5.3-(0.8 + 0.75)×2](93) 5.6×[(10-2.4)÷7.6]÷1.6
(94)8.37×0.4+9.6×8.37
(95) 5.28+12.5×4.12×0. 8+4.72
(96)(10.8- 1.06-0.74)× 2.87+
2.87
(97) 3.25×(30.1-24.91÷4.7)
(98)[68.8-(7.8+16.08×2.5)]÷1.3(99)7.05×23.7+7.05×76.3
(100)0.125×3.2×2.5
(101)50+160÷40×(58+370)÷(64-45)
(102)120-144÷18+35
(103)347+45×2-4160÷52
(104)(58+37 )÷(64-9×5 )(105)95÷(64-45)
(106)178-145÷5×6+42
(107)420+580-64×21÷28
(108)85+14×(14+208÷26 )(109)(284+16)×(512-8208÷18)(110)120-36×4÷18+35
(111)(58+37 )÷(64-9×
5 )
(112)(6.8-6.8×0.55)÷8.5
(113)0.12× 4.8÷0.12×4.8
(114)( 3.2× 1.5+2.5 )÷
1.6
(115)6-1.6÷4
(116) 5.38+7.85-5.37
(117)7.2÷0.8-1.2×5
(118)6-1.19×3-0.43
(119) 6.5×( 4.8-1.2×
4 )
(120)0.68× 1.9+0.32×
1.9
(121)10.15-10.75×0.4-5.7
(122) 5.8×(3.87-0.13 )+4.2×
3.74
(123)32.52- (6+9.728÷3.2)×
2.5
(124)100×24÷(24-4 )
(125)7.2 ×(9- 5 )×
0.3
(126)120-144÷18+35
(127)347+45×2-4160÷52
5 )
(129)95÷(64-45)
(130)(136+64)×(65-345÷23)
(131)85+14×(14+208÷26 )(132)120-36×4÷18+35
(133)(58+37 )÷(64-9×
5 )
(134)(6.8-6.8×0.55)÷
8.5
(135)0.12× 4.8÷0.12×4.8(136) 3.2×( 1.5+2.5)÷
1.6
(137) 4.02+ 5.4+
0.98
(138) 5.17-1.8-3.2
(139)13.75-(3.75+6.48)
(140) 3.68+7.56-
2.68
(141)7.85+ 2.34-0.85+
4.66
(142)35.6-1.8-15.6-7.2
(143) 3.82+2.9+0.18+9.1
(144)9.6+ 4.8-
3.6
(145)7.14-0.53-2.47
(146) 5.27+ 2.86-0.66+
1.63
(147)13.35-4.68+2.65
(148)47.8-7.45+8.8
(149)0.398+0.36+3.64
0.59+14.25
(151)42.5-(6.07+1.13)
(152)73.8- 1.64-13.8-
5.36
(153)66.86-8.66-
1.34
(154)0.25×16.2×4
(155) 3.72×3.5+6.28×3.5
(156)36.8- 3.9-
6.1 2
(157) 5.48-(9.4-0.52)
(158) 4.8×7.8+78×
0.52
(159) 3.6×102
(160) 6.4×0.25+3.6÷4
(161)32+4.9-0.9
(162) 4.8-4.8×0.5
(163)(1.25-0.125)×8
(164) 4.8×100.1
(165)56.5×9.9+
56.5
(166)7.09×10.8-0.8×7.09 (167) 4.2÷3.5
(168)320÷ 1.25÷8
(171) 4.78÷0.2+
3.44
(172) 3.6-0.6×2
(173) 3.65×10.1
(174) 3.6- 3.6×
0.8
(175)15.2÷0.25÷4
(176) 5.6÷
3.5
(177)9.6÷0.8÷0.4
(178) 4.2×99+4.2
(179)0.89×100.1
(180)146.5-(23+46.5)
(181)17.8÷(1.78×4)
(182) 5.83×2+
4.27
(183)(45.9-32.7)÷8÷
0.125
(184)9.7×99+9.7
(185) 4.36×12.5×8
(186)15.6×13.1-15.6-
15.6×2.1
(187)0.65×101(189)8.54÷ 2.5÷
0.4
(190) 3.83×4.56+3.83×5.44(191) 1.25×2.5×32
(192)0.49÷1.4
(193) 3.9-4.1+6.1-5.9