1、3.56.283.5 36.83.96.115.613.115.615.62.1 4.87.8780.52 324.90.9 4.8100.1 56.59.956.5 7.0910.80.87.0925.48(9.40.52) 4.23.5 3201.258 18.769.918.76 3.522.50.4 3.94.16.15.95.63.5 9.60.80.4 4.2994.2 17.8(1.784) 0.491.4 1.252.532 3.6510.1 15.20.254 0.89100.1 146.5(2346.5)3.834.563.835.44 4.3612.58 9.7999.7
2、 27.53.77.53.7 8.540.4 0.65101 3.20.2512.5 (45.932.7)80.125 3.140.6831.40.032 5.67.20.22.41.4 8.91.01 7.74(2.81.3)1.52.263.92.73.97.3 181.80.1250.8 12.79.91.27 21(9.33.7)5.6 15.02-6.8-1.02 5.411-5.4 2.316+2.323+2.3 9.43-(6.28-1.57) 3.654.736.50.37 46572386 13.70.253.74 2.229.9+6.666.7 1010.87-0.9187
3、 10.716.1-15.110.7 0.79199 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.980.134+2.66+0.866 1.27+3.9+0.73+16.1 7.54.96.5 3.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.47.2 0.324033.20.364.81.64 1.233.40.236.6 0.253612.7(3.70.84) 3
4、6.541.764.54 0.250.7347.60.80.27.6 0.85199 0.258.54 1.288.60.728.6 12.50.960.8 10.49.60.350.8(4.31.25) 3.123.1299 28.610128.60.8615.70.8614.7 2.4102 2.311.20.5147.322.68 2.648.677.3611.33 7028 (2.50.25)0.4 9.161.50.59.16 3.63.663.40.4 4.91.4 3.9(1.35) (7.71.54)0.7 2.52.4 2.745 15(0.150.4)0.3520.8 32
5、.40.90.132.4 150.25 4.51.8 4.23.5 9300.653.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.3257.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.29 0.125 0.283.22.5 3540.24 3.59.999+3.5 3.5101-3.59.9+3.50.12.7+350.732.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.64.93.5 7 70.1257.35(7.350.25) 7.3
6、5(7.353.070.381.62 1.293.72.716.3 82.451.553.251.790.591.75 23.40.813.47.2 0.323.20.364.81.64 1.233.40.236.6 0.2512.7(3.70.84) 36.541.764.547.6 0.851998.6 12.5 10.49.61.25) 3.123.1299 28.6(4.236.17) 0.8614.7 2.4147.322.68 2.648.677.3611.33 2.310.4 9.169.16 3.63.61.8 4.2 9305 4.91.4 3.95) 2.52.4 2.74
7、5 32.432.4 150.2570280.4) 4.259.90.17 7.325-(5.325+1.7) 7.325-(5.325-1.7)23.40.813.47.210213843573849839750239963455513756302993021458914521 二、用简便方法计算。1、36826491351 2、 891011113、24127476573 4、4002731275、327(96127) 6、72987、442103142 8、9999999、672 10、25(784)11、72125 12、900012513、40025 14、2515、10327 16
8、、7617、3600254 18、993519、(2512)4 20、5627274421、569956 22、125823、2532125 24、12564 (1)(7861)39 (2)7008218(3)348163242410537(4)125474725 (5)201316(6)37420522695 (7)3000999(8)997721 (9)8747087053(10)(555555555)125(11)125(840)25 (12)994999(13)264974264 (14)454999999545(15)9999366666332(16)1243865124761107
9、67(17)624445518(18)3400623438203814(19)199219911991-19911990199038425 125278 4835458+251+749 196-26-74 8400536-249-136 813+569-213 48+5234632+4668 9499+94 101482-4821629+1648+1623 6753-674315(9+10+8) (6+8)25第三单元 简便计算姓名: 学号: 班级:小测题二(简便运算二拆数凑整)56125 4825 992810159 10243 14424 320- 198小测题三(加减法或乘除法运算的简便运算)136-48-36 417-138-62 246-178+78437-(137+59) 252-(63-48) 357+(132-57)30008 1080(93) 1000(2024(368) 239+153+47-239
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