1、六年级数学总复习简便计算练习题 一、口算。(10分)102.65 03.8 90.08 240.4 67.50.25 614.4 0.770.33 51.41.6800.125= 3=二、 用简便方法计算下面各题。1125997 998+1246 4+3.25+6.8 12(1+2)4001258 25(378)()12 1234(2) 1258.8 4.354.253.653.75 3.4993.417.158.471.53 1734 20.1250.2532 22.32.455.34.55 (+)724.253(21) 187.711187.7 4357.1250.5() 2.42+4.5
2、843 6.62.5 4.6+5.4 2.8+7.2+ (+)+2.25+ + + 0.75+0.375 5-+ 48.3- 4.25+6 0.6250.5+62.5% +(-1.8) 2.5(+) 22+2575%-70.750.2563.5 2.5- +3.125+ 1125-996(111+999) 56(-) 49.5-(50-)0.6 +45(+0.6) 89737.5%+1040.375 (5.375)3.5+1.25+3.8 7199 3755+2996 8439+1001446+295 888+999 72156-5672 2532125 70999+70914. 0.2548
3、 2.50.42 299101 563999 26.6+2.5675.399+75.3 4.63.7+540.37 0.125+8.25+12.5%8.37-3.25-(1.37+1.75) 210020 1161 154.25519.826.573.43 4.6+3+6+5.4 4+2.25+5+7 9.632.54 60.253 + + 18(+)7+5 ()(24) (+)(+) 7+5 ()24)(+) (+) (3217) (25) (2121) (99)9 () ()30 3 4 5841 () 235 - 13518 153 0.653 ()10 - - + 25 13.098.124.88 12103450075() ()1511