小数简便计算、混合计算各50道.doc

1、0.25 X 0.280.125X 3.2 X 2.5350.25 X 4-0.25 X 43.5X 9.93.53.5 X 101-3.53.5X 9.9+3.5 X 0.13.53.5 X 2.7-3.5 X 0.7(32+5.6)-0.83.54.9 - 3.57-0.25 - 47请用简便二-计算列各题7.35 - (7.35 X 0.25)7.35-(7.35 - 0.25)X 40.2X 99+3.5X 2.7+35 X 0.73宁 0.6-0.5 宁 0.6-0.125 - 87.325-(5.325+1.7)3.29+0.73+2.273.29-0.73-2.277.5+2.5

2、-7.5+2.53.29+0.73-2.29+2.273.29X 0.25 X 40.125X 8.863.4 - 2.5 - 0.44.9-1.43.9-(1.3 X 5 )(7.7 + 1.54 ) - 0.72.5X 2.42.7-450.35 X 1.25 X 2X 0.832.4X 0.9 + 0.1 X 32.415-0.2528.6 X 101-28.60.86X 15.7 0.86 X 14.72.4X 10214-7.32 2.682.64+ 8.67 + 7.36 + 11.332.31X 1.2 X 0.5(2.5 0.25 ) X 0.49.16X 1.5 0.5 X

3、9.163.63.6 X 0.57.325-3.29-3.3257.325-(5.325+1.7)7.325-(5.325-1.7)7.6 X 0.8 + 0.2 X 7.60.85X 1990.25X 8.5 X 40.25 X 360.125X 3.2 X 2.535X 40.250道混合运算】50.6.5 X( 4.8-1.2 X 4)=51.5.8 X( 3.87-0.13 ) +4.2 X 3.7452.32.52-(6+9.728 - 3.2 ) X 2.553. (7.1-5.6 ) X 0.9-1.15- 2.554.5.4 - 2.6 X( 3.7-2.9 ) +0.6255

4、.12 X 6-( 12-7.2 ) -656.12 X 6-7.2-657.0.68 X 1.9+0.32 X 1.958.58+370) -( 64-45) 59.420+580-64 X 21 - 2860.136+6 X( 65-345 - 23)15-10.75 X 0.4-5.762.18.1 + ( 3- 0.299 - 0.23 ) X 163.(6.8-6.8 X 0.55) - 8.564.0.12 X 4.8 - 0.12 X 4.865. (3.2 X 1.5+2.5 ) - 1.666.3.2 X 6+ (1.5+2.5 ) - 1.667.0.68 X1.9+0.3

5、2 X1.968.10.15-10.75 X0.4-5.769.5.8 X( 3.87-0.13 )+4.2X3.7470.32.52-(6+9.728 - 3.2 ) X 2.571. (7.1-5.6 ) X 0.9-1.15- 2.572.5.4 - 2.6 X( 3.7-2.9 ) +0.6273.12 X 6-( 12-7.2 ) -674.12 X 6-7.2-675.33.02 -(148.4-90.85-2.5X 0.9292.4.38- (36.94 + 34.3 X0.2)93. (5.84 - 3.9 )-0.4 + 0.1594. 7.6 - 5X(0.3 + 0.9)-1095.1.8 X(1.4 - 0.26-2)96.0.27 X 99 + 0.2797. 8- 0.8 -