递等式计算
（1）3.14×9.9+0.314 （2）4.05×101 （3）9.1÷0.125 （4）79 ×1.25 （5）3÷2.5÷0.4 （6）7÷125 （7）5.1×0.99
（8）2.5×7.83×0.4 （9）54÷（3.94+6.86）×0.8 （10）0.56×40.5+0.44×59.5 （11）6.27×1.5-6.27 （12）8.8×0.125 （13）6.3÷4.2 （14）999×99＋199 （15）2.5×（6.4－5.6÷4） (16)5.4÷（2.7×4） (17)3.68－7.4＋5.19 (18)3.18－7.5＋6.34 (19)9.9×1.02
(20)6.7＋19.34＋3.3＋0.66 (21) 7.5÷（2.5÷7） (22)6.4×（125×0.125） (23) 0.8×（1－0.24×0.5） (24)4.8÷1.25
(25) 2.5×1.25×3.7×3.2 (26)30.1÷[（6.07+2.53）×0.7] (27)2.54+6.02+6.46+3.98 (28) 4.5＋3.2－3.2＋4.5 (29)87.5－0.2×35.4
(30)8.75＋（87.5－0.2）×35.4 (31)8.75＋（87.5－0.2×35.4） (32)（1-0.8）×（4-3.68）÷0.01 (33)（2.5-1÷0.8）×0.8-0.8 (34) 29.5－(9.5＋0.86) (35) (12.5＋2.5＋50)×8 (36)100－3.5×0.4÷0.2 (37)15.4÷0.5－1.2×0.5 (38) 4.8－7.5×8÷30 (39) 3.7×4.5＋3.7×4.5+3.7
(40)（25.8－8.4÷0.4）×1.5 (41) 12.5×2.5×6.4×0.5
(42) 264÷[1.8―0.8×(1.5－0.9) ] (43) (7.6＋2.4×0.5)÷(0.064÷0.4) (44) 20－1.2÷6÷0.5 (45)(8＋0.8)×12.5
(46) (3.12＋0.9)÷[(1－0.8)÷0.01] (47)8.1÷(2.7×1.5) (48) 9.09×67.67－9.09＋9.09×33.33
(49)4.56－1.28＋1.63
(50) 17.8×640－56×178－0.3×1780 (51)1.85＋2.4＋6.6＋8.15 (52)2.5×1.25×6.4×0.2 (53)1.25×6.4×2.5
(54) 21.6÷[64.8－（48.6－2.7×2）] (55)3.6×21＋0.9×17－0.9 (56) (5.6＋4.4÷0.2)×0.5 (57) 2.9×9.2＋8.5×2.9＋2.2×2.9 (58) 1800÷2.5 (59) [32-（7.25+0.75×8）]÷50 (60) 84.7÷0.4×2.5
(61) 4.2÷[2.6＋（2.4－0.5×4）] (62) 23×96＋92 (63) 8.88×12.5
(64) 28×0.36＋3.6×7.2
(65) 9.9×4.8+0.48 (66) 231÷(11÷4.5) (67) 45×3.6＋450×0.64 (68) (0.125×5.6)÷0.7
(69)2.5×（3.7＋3.7＋3.7＋3.7） (70) 6.5×8.93＋6.5×0.07＋6.5
(71) 72×3.6＋720×0.64
(72)(8.5－0.9×3÷0.6)÷0.05
(73)3.9×2.8＋3.9×8.2－3.9
(74)（1.2＋4.5×20÷1.8）÷100
(75)5.6×44＋2.8×10＋2.8×2
(76) 0.99÷3.6×1.8÷3.3
(77) 5.26×0.4÷5.26×0.4
(78) 4.8×8.7＋87×0.52
(79) 2.6×7.3＋0.26×26＋0.26
(80) (3.7×1.2+4.3×1.2)×1.25
(81) 17.75×1.5＋5.25×1.5－23
(82) 9.5×8.4－9.5＋9.5×2.7
(83) 90.2－(77.4－9.8)－12.6
(84) 16.5÷0.25÷0.4×2
(85) 0.32×12.5×0.125
(86) 0.5×40×1. 25×0.5×8
(87) （67×76＋76×58）×8
(88)3.6÷1.25÷0.8×5
(89)8.5＋8.2×19＋1.3×19
(90)0.521÷1.25×8
(91)0.4×67＋0.1×4－2.8×4
(92)0.99＋1.1×1.9＋1.1×7.2
(93) 0.65÷1.25
(94) 12.5×(4＋0.8)×2.5
(95) 7.5＋9.2×15＋0.3×15
(96) [2.8＋0.2×（4.1－2.6）]÷0.1
(97)37.5－7.5÷[(19.2－4.5×3.6)]
(98) 400.8＋2.5×23－24÷0.16
(99) 3.7×2.8＋3.7×2.8＋3.7×4.4 (100) 1.01×0.99
(101) 6.5÷(1.3÷16)
(102) 2.5×12.5×0.4×0.08
(103) (0.24×4+0.24×4)×1.25 (104) 0.6×67＋0.1×6－2.8×6 (105) 8.75×0.2×7×0.4 (106) 0.6×2.9＋9×0.2＋8.1－1.8 (107) 195.3－[(44×5.5＋4.5)÷5] (108) 4.2÷[(5.1－4.6)×0.8－0.3] (109) 25.1－18.4＋6.32÷0.8×0.7 (110) 0.35＋0.35×3.7＋5.3×0.35 (111) 15.6×13.1－15.6－15.6×2.1 (112) 81000 ÷ (27 × 78 +27× 22 ) (113) 0.8×12.7＋7.1×0.2×4＋1.6 (114) 210.5－81.4-6.32÷0.8×0.7 (115) 4.3×2.4＋5.7×4.3+8.1×5.7 (116) (1.9－1.9×0.9)÷(8.3－8.2) (117) 3.2×[ (15.2-4×3.6)÷0.16 ] (118) (36.7－4.9)×1.2＋1.6
(119) 7.83＋65×7.83＋7.83×34 (120) （18.5×3.6+3.6×2.5）÷0.18 (121) 0.6×12.7＋7.1×0.2×3＋1.2 (122) 13.4×2.7－0.3×9＋7.6×2.7 (123) 0.35×[1÷（2.7-2.66）+0.65] (124) 9.85－6.07＋3.7
(125) 0.035＋0.35×7.3＋2.6×0.35 (126) [ 2.8-2.8×(2.8-2.8) ]÷5.6 (127) 3.001-0.25×0.4÷0.25×0.4 (128) 5.6×0.26＋0.75×5.6-0.056 (129) （23.6×5.2+5.2×15.4）÷0.13 (130) [0.15+（3.74-1.8）÷0.4]×20 (131) (0.4×0.08)×2.5
(132) 8.08×0.25
(133) 0.36÷(4×3.6)
(134) 398－520÷26×15
(135)2.4×38＋24×6.3－0.24×10 (136) [0.18＋(5.8－3.8)÷0.4]×2 (137) 18.24－5.26－5.74
(138) 38.4÷0.16－6.8×35＋7.8 (139) 1.5×2.4÷1.8－1.8
(140) (1－0.01×10)÷0.01
