1、北师大版六年级数学简便运算题库80.412.52.5 0.4125250.8 3212525 (2.525)0.437002185815 64125 125(84) 75997560(15500) 4351999 1704804 10356 9914 10236 498080 679339(138)125 25(4032) (57)80 8141256 2843598 4825125 259468741532 3625 12151235 311282831 (25250)4(125125)8 (- )60 + 258 (15)101- 99 + + - 25 36 ( - ) 6.62.5 4
2、.6+5.4 () 2.8+7.2+ +2.25+ + + + 0.75+0.375 + 5- (+) 48.3- 4.25+60.6250.5+62.5% 2.5(+) 22+2575%-70.75 0.2563.5 2.5-+3.125+ +(-1.8) (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+1001 60.25 446+295 888+999 1125-996 299101 563999 210020 72156-5672 253
3、212570999+709 0.2548 2.50.42 26.6+2.56 75.399+75.34.63.7+540.37 0.125+8.25+12.5% 1161 154.25519.826.573.43 4.6+3+6+5.4 4+2.25+5+7 9.632.548.37-3.25-(1.37+1.75) (1525)2 1225 2825 37002185815 125(84) 321446856 2847144251 60(15500) 43519998(1259) 46185418(40016)5 1704804 10356 13681332 (24)155(206)8238
4、27 96499914 759975 10236 498080 430216184 679339(138)125 20(175) 14205 2763827662 10226 25(4032) (57)808141256 162554 251342843598 4825125 259468741532 3625 12151235311282831 (25250)4 (125125)8(- )60 + 258 (15)101- 99 + ( + ) + - 325 36 ( - )填空题。1、( )的 是27;48的 是( )。 2、5和( )互为倒数,( )的倒数是它本身。3、比80米多 是(
5、 )米;300吨比( )吨少 。4.列式计算:(1)一个数的是,这个数是多少? (2)减去与的积,所得的差除以9,商是几? 添(去)括号的应用1、7.35-(1.9+2.35) 2、93315743 3、8.8-6.75+9.2-0.25 4、41102 5、3.6+9.7+6.4 6、4.67-(2.98+0.67)7、7.15-(2.7+4.15) 8、2.89+2.7+7.3+3.21 9、500-257-34-143 运算顺序易出错 2、1042-3841613 4、2.7-2.72.75、87 6、 7、(54 )9 乘法分配律小学六年级数学口算题254 0.40.31 1.40.6
6、 10.2245 0.80.16 6.80.3 4.268.78.7 7.51.5 3.10.01 1.80.50.1410 0.951.9 330.01 200065000.110 30.4 2.20.3 33330100.1 2.60.2 1.240 31.59814 1.258 0.459 0.1282546 0.254 1.44 0.10.020.580.33 2.44 125 7.244030 1.50.5 442 0.540.1848060 2.14 90900 0.480.164.60.6 9.11.3 0.10.5 1.40.53080 0.55.3 0.750.25 1.72
7、.87525 0.680.17 0.20.3 0.82.70.91.8 0.220.46 1.64 3.251.69800980 1007000 2220 1.140.361.5 2.80.2 8669 3.460.598202 2.20.3 2.20.01 0.150.635050 6303 9.50.5 1.40.83050 5235 0.270.2 600.32090 2.20.04 130.01 10.252.30.1 120.05 3.21.6 10.50.210.3 280.03 4.10.02 3.281435 0.960.8 2.90.03 89311.40.5 2.231.74 8.70.5 33401.60.4 4.40.1 6.33.85 12.57.22.4 1.30.5 70.25 12516714.2 18090 63090 442