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1、小数四则混合运算练习,五年级上册数学,1、直接说出得数,1.20.3 0.258 0.8-0.761.60.4 0.764 0.840.21,2、根据运算规律填空,17.82-(7.82+5.5)=17.82- 0.78 0.30.2= 0.78 ( )9.161.75-9.16 = 9.16(-) 5.8101= 5.8100+ ,计算下面各题,9-4.37-0.63 0.450.60.59-(4.37+0.63) 0.45(0.60.5),计算下面各题,9-4.37-0.63 0.450.60.5 =4.63-0.63 =4 9-(4.37+0.63) 0.45(0.60.5),计算下面各
2、题,9-4.37-0.63 0.450.60.5 =4.63-0.63 =0.750.5 =4 =1.59-(4.37+0.63) 0.45(0.60.5),计算下面各题,9-4.37-0.63 0.450.60.5 =4.63-0.63 =0.750.5 =4 =1.59-(4.37+0.63) 0.45(0.60.5) =9-5 =4,计算下面各题,9-4.37-0.63 0.450.60.5 =4.63-0.63 =0.750.5 =4 =1.59-(4.37+0.63) 0.45(0.60.5) =9-5 =0.450.3 =4 =1.5,下面各题,怎样简便就这样算,5.52-0.55
3、-0.45 5.54.8+5.25.58.1(0.90.3) 2.12-(1.12+30.33)8.53+6-8.53+6 (8.25-3.75)2.54,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(0.55+0.45) =5.52-1 =4.52 8.1(0.90.3) 2.12-(1.12+30.33)8.53+6-8.53+6 (8.25-3.75)2.54,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(0.55+0.45) =5.5(4.8+5.2) =5.52-1 =5.51
4、0 =4.52 =558.1(0.90.3) 2.12-(1.12+30.33)8.53+6-8.53+6 (8.25-3.75)2.54,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(0.55+0.45) =5.5(4.8+5.2) =5.52-1 =5.510 =4.52 =558.1(0.90.3) 2.12-(1.12+30.33) =8.10.90.3 =90.3 =30 8.53+6-8.53+6 (8.25-3.75)2.54,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(
5、0.55+0.45) =5.5(4.8+5.2) =5.52-1 =5.510 =4.52 =558.1(0.90.3) 2.12-(1.12+30.33) =8.10.90.3 =2.12-1.12-30.33 =90.3 =1-0.99 =30 =0.018.53+6-8.53+6 (8.25-3.75)2.54,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(0.55+0.45) =5.5(4.8+5.2) =5.52-1 =5.510 =4.52 =558.1(0.90.3) 2.12-(1.12+30.33) =8.10.90.3
6、=2.12-1.12-30.33 =90.3 =1-0.99 =30 =0.018.53+6-8.53+6 (8.25-3.75)2.54 =(8.53-8.53)+(6+6) =12,下面各题,怎样简便就这样算,5.52-0.55-0.45 5.54.8+5.25.5 =5.52-(0.55+0.45) =5.5(4.8+5.2) =5.52-1 =5.510 =4.52 =558.1(0.90.3) 2.12-(1.12+30.33) =8.10.90.3 =2.12-1.12-30.33 =90.3 =1-0.99 =30 =0.018.53+6-8.53+6 (8.25-3.75)2.54 =(8.53-8.53)+(6+6) =(8.25-3.75)(2.54) =12 =4.510=0.45,.,20,.,21,拓展题,