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1、.六年级数学总复习简便计算练习题六年级数学总复习简便计算练习题一、口算。（一、口算。（1010 分）分）10102.652.650 03.83.89 90.080.08 24 240.40.4 67.5 67.50.250.25 6 614.414.4 0.77 0.770.330.335 51.41.41.61.680800.125=0.125=133 37=二、用简便方法计算下面各题。（二、用简便方法计算下面各题。（9090 分，分，4 420205 52 2）11251125997 998+1246 4997 998+1246 413+3.2+3.25 523+6.8 12+6.8 12
2、25(1(127+2+225)400)4001251258 258 25（37378 8）(1416)12 112 1342 241547 34 34(2(21334)125)1258.8 4.358.8 4.354.254.253.653.653.75 3.43.75 3.499993.43.417.1517.158.478.471.53 171.53 17535 715263 344 46 9225119 0.125 0.1250.250.2532 22.332 22.32.452.455.35.34.554.551/77.(11757114 45 53 33 3513+)724.2572
3、4.253 3(2(21 1)187.7)187.71111187.7 43187.7 4357.12557.1250.50.53 3()1218246642.422.4234+4.58+4.58111 13 37 71 1343432 22 26.66.62.52.56 62 25 5 11 118 86 63 31 13 3 4.6+3 4.6+34 43 38 8+2.25+5+2.25+55 58 8+7+73 34 4 7 72 25 5+4+45 57 7+2+23 35 5 53 536 6111116164 47 7+16+165 51111 2 23 37 7+3+35 53
4、 34 44 49 93 37 7+1+19 9+1+17 7 0.75+0.75+822 23 35 5+6+65 5+5.4 2.8+5+5.4 2.8+55 58 8+1 14 4+0.375 5-2+0.375 5-22/7215157 714144 44 49 9+7.2+3+7.2+35 59 9 4 44 45 5(2(24 45 55 5+1212)14141717-1-13 31717.4 44 44 44 44 41 15 55 51 15 51 13 35 53 34 44 49 9 +99+99 +999+999 +9999+9999 48.3-15 48.3-15 -
5、4-4 9 94.25+44.25+46 0.6256 0.6250.5+0.5+62.5%3162.5%3172723131 16 16 +(2+(2 -1.8)-1.8)5 55 55 55 55 56 66 66 64 48 82 28 813138 85 57 72.52.5(3 33 33 31 17 714145 54 47 77 74 43 3(111+999)(111+999)5656(-)49.5)49.51010 -(50-(50-)0.60.64 4+5+51 1 +45 45(+0.6)8970.6)89737.5%+10437.5%+1040.3750.3757 78
6、 85 52 21111191919197 711119 915158 81 13 31 17 74 43 3(5(55.375)3.55.375)3.51 1 +1.25+1.252 2+3.8+3.8717199 3755+2996 8439+1001 446+295 888+99999 3755+2996 8439+1001 446+295 888+9994 48 84 410105 53/79 99 99 99 93 31 11 17 71 17 78 81 17 7+)22)22 +25+2575%-775%-70.75 0.250.75 0.2563.563.51313 6 62.
7、5-22.5-24 4 3 3 +3.125+1+3.125+1 +1+11125-9961125-99610101010101010104 44 42 215152 215159 99 98 8.3 31 17272156-56156-5672 2572 253232125 709125 70999+709 14.0.2599+709 14.0.2548 2.548 2.5 0.4 0.42 2 299 299101 563101 5639999992 21 13 32 26.6+2.56.6+2.56 65 5202011117 78 86 61 12 23 31 13 3 15 150.
8、250.2599+75.3 4.699+75.3 4.63 314144.254.255 53 34 4 19.82 19.823.7+543.7+540.37 0.1250.37 0.1256.576.573.43 4.6+33.43 4.6+37 73 33 34 4+1 18 88.25+12.5%8.37-3.25-(1.37+1.75)21008.25+12.5%8.37-3.25-(1.37+1.75)21002 25 5+6+63 33 35 53 35 5+5.4 4+5.4 48 8+2.25+5+2.25+58 8+7+74 4 9.63 9.63 2.52.54 64 6
9、4/7 75.3 75.3.3 375 5355 855104522114+1818（+）7+7+5 5（）（）（2424）1212 7887 151627996336125（+）5747474 1211221145444 1211（+）7+7+5 5（）2424）（+）（+）7 535133361257777 535135/7.(32(321442105411 569957 111（）（）30303 3 4 45858414181553116532 651051111 883 34 41 17 77 74451 4523 4515（）235-135235-1351818153153 0.6 0.65353（）5 55 54 43 310105742 5655 58286/7311 18159799341945517)17)（2525）（21212121）（9999）9 941225161677410568444 2516.7 712121 11 15 53 31 11 13 310102 23 310-10-+25 25 13.09 13.098.128.124.88124.8812103103450045007575()()()151511111919191919193 32 210108 82 25 59 9151511117/7