1、.用简便方法计算 (1) 姓名: 月 日 2586.24 586.20.4 36152 361.50.245102 4510.2 3427+3473 342.7+347.3 8699+86 15.75+3.590.59+14.25 13.75(3.756.48) 1.258.8 0.4566.223.78 15.89(6.755.89) 4.025.40.98 5.171.83.2 3.687.562.68 7.852.340.854.66 35.61.815.67.2 7.140.532.47 用简便方法计算 (2) 姓名: 月 日 3.822.90.189.1 9.64.83.6 6.94
2、.83.1 4.23.5 5.272.860.661.63 13.354.682.65 73.81.6413.85.36 47.87.45+8.8 0.398+0.36+3.64 8.699+8.6 3201.258 66.868.661.34 0.2516.24 (1.250.125)8 3.6102 3.723.56.283.5 36.83.96.1 15.613.115.615.62.1 4.87.8780.52 324.90.9 用简便方法计算 (3) 姓名: 月 日 4.8100.1 56.59.956.5 7.0910.80.87.09 25.48(9.40.52) 18.769.
3、918.76 3.522.50.4 5.63.5 9.60.80.4 4.2994.2 3.94.16.15.9 17.8(1.784) 0.491.4 1.252.532 15.20.254 0.89100.1 146.5(2346.5) 9.7999.7 3.834.563.835.44 4.3612.58 3.6510.1 用简便方法计算 (4) 姓名: 月 日 27.53.77.53.7 8.542.50.4 0.65101 8.91.01 3.20.2512.5 (45.932.7)80.125 3.140.6831.40.032 5.61.250.82.50.4 7.20.22.4
4、1.4 7.74(2.81.3)1.52.26 3.92.73.97.3 181.80.1250.8 12.79.91.27 21(9.33.7)5.6 15.02-6.8-1.02 5.411-5.4 0.79199 2.316+2.323+2.3 9.43-(6.28-1.57) 3.654.736.50.37 用简便方法计算 (5) 姓名: 月 日 46572386 13.70.253.74 2.229.9+6.666.7 1010.87-0.9187 10.716.1-15.110.7 5.93+0.19+2.81 4.8+8.63+5.2+0.37 1.76+0.195+3.24 6
5、.02+3.6+1.98 0.32403 2.35+1.713+0.287+7.65 1.57+0.245+7.43 82.451.55 7.54.96.5 0.134+2.66+0.866 1.27+3.9+0.73+16.1 3.070.381.62 3.251.790.591.75 23.40.813.47.2 1.293.72.716.3 用简便方法计算 (6) 姓名: 月 日 3.20.364.81.64 1.233.40.236.6 0.2536 0.85199 12.7(3.70.84) 36.541.764.54 0.250.734 0.258.54 7.60.80.27.6
6、1.288.60.728.6 12.50.960.8 40.35 + 9.63.5 0.8(4.31.25) 28.610128.6 0.8615.70.8614.7 2.4102 2.311.20.5 147.322.68 2.648.677.3611.33 7028 用简便方法计算 (7) 姓名: 月 日 (2.50.25)0.4 9.161.50.59.16 3.63.60.5 63.42.50.4 4.91.4 3.9(1.35) 3.123.1299 (7.71.54)0.7 2.52.4 2.745 15(0.150.4) 0.351.2520.8 32.40.90.132.4 1
7、50.25 4.51.8 9300.65 7.5+2.5-7.5+2.5 3.29+0.73+2.27 3.29-0.73-2.27 4.23.5 用简便方法计算 (8) 姓名: 月 日 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.290.254 0.1258.8 0.250.28 3540.2 0.1253.22.53.59.9 0.2540.254 3.599+3.5 3.5101-3.5 70.254 3.59.9+3.50.1 3.52.7+350.73 3.52.7-3.50.7
8、(32+5.6)0.8 3.50.6-0.50.6 4.93.5用简便方法计算 (9) 姓名: 月 日 7.35(7.350.25) 7.35(7.350.25) 70.125 0.2536 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 1.233.40.236.60.250.73412.7(3.70.84) 36.541.764.54 7.60.8+0.27.6. 0.85199 0.258.54 1.288.60.728.6 28.6101用简便方法计算
9、(10) 姓名: 月 日 12.50.960.810.49.60.35 0.8(4.31.25) 3.123.1299 (4.236.17)0.8 0.8615.70.8614.7 2.4102 147.322.68 2.648.677.3611.33 2.311.20.5(2.50.25)0.4 9.161.50.59.16 3.63.60.54.51.8 4.23.5 9300.65 63.42.50.4 4.91.4 3.9(1.35) (7.71.54)0.7 2.52.4 2.745 0.351.2520.8 32.40.90.132.4 150.257028 15(0.150.4)
10、 4.252.59.90.173.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)3.29+0.73-2.29+2.27 3.290.254 0.1258.8 0.250.28 0.1253.22.5 3540.2 0.2540.254 3.59.9 3.599+3.5 3.5101-3.5 3.59.9+3.50.1 3.52.7+350.733.52.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.64.93.5 70.254 70
11、.125 7.35(7.350.25) 7.35(7.350.25) 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) 36.541.764.54 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 28.610128.6(4.236.17)0.8
12、 0.8615.70.8614.7 2.4102147.322.68 2.648.677.3611.33 2.311.20.5(2.50.25)0.4 9.161.50.59.16 3.63.60.54.51.8 4.23.5 9300.65 63.42.50.4 4.91.4 3.9(1.35) (7.71.54)0.7 2.52.4 2.745 0.351.2520.8 32.40.90.132.4 150.257028 15(0.150.4) 4.252.59.90.17138435738 498397 502399 63455513712556 30299302 1458914521
13、二、用简便方法计算。1、36826491351 2、 891011113、24127476573 4、4002731275、327(96127) 6、72987、442103142 8、9999999、6752 10、25(784)11、72125 12、9000125813、40025 14、253615、10327 16、7610217、3600254 18、993519、(2512)4 20、5627274421、569956 22、125258423、2532125 24、12564 (1)(7861)39 (2)7008218 (3)348163242410537(4)1254747
14、25 (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)124386512476110767(17)624445518(18)3400623438203814(19)199219911991-19911990199038425 125278 4835235458+251+749 196-26-74 8400254536-249-136 813
15、+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)30001258 1080(93) 1000(204)24(368) 239+153+47-239单纯的课本内容,并不能满足学生的需要,通过补充,达到内容的完善 教育之通病是教用脑的人不用手,不教用手的人用脑,所以一无所能。教育革命的对策是手脑联盟,结果是手与脑的力量都可以大到不可思议。单纯的课本内容,并不能满足学生的需要,通过补充,达到内容的完善 教育之通病是教用脑的人不用手,不教用手的人用脑,所以一无所能。教育革命的对策是手脑联盟,结果是手与脑的力量都可以大到不可思议。