六年级计算复习题.docx

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 1 2 34(2 ) 1258.8 4.354.253.653.75 3.4993.4 17.158.471.53 17 3 4 2 0.1250.2532 22.32.455.34.55 ( + )72 4.253 (2 1 ) 187.711187.7 43 57.125 0.5 3415 (57 314 34 ) 2.42 +4.58 43 212 6.62.5635 1178 613 123 4.6+325 +635 +5.4 2.8+549 +7.2+359 445 (245 +512 ) 438 +2.25+558 +734 725 +457 [phone] [phone] +359 337 +149 +147 0.75+58 +14 +0.375 5-21417 -1317 45 945 +9945 +99945 +999945 48.3-1516 -456 956 4.25+414 6 0.6250.5+58 +12 62.5% 3138 72513 3138 1645 +(247 -1.8) 2.5(910 +910 +910 +910 ) 2234 +2575%-70.75 0.2563.514 1312 6715 2.5-212 4715 389 +3.125+119 [phone] (111+999) 56(37 -38 ) 49.51035 -(50-12 )0.6 711 41419 +5519 147 +711 45(79 +415 0.6) 89738 37.5%+1040.375 314 (538 5.375) 3.5114 +1.252710 +3.845 7199 3755+2996 8439+1001 446+295 888+999 72156-5672 2532125 70999+709 14. 0.2548 2.537 0.4213 299101 563999 2126.6+2.5635 75.399+75.3 4.63.7+540.37 0.12534+188.25+12.5% 8.37-3.25-(1.37+1.75) 210020 1178613123 153144.25534 19.826.573.43 4.6+325+635+5.4 438+2.25+558+734 9.632.54 60.25 235 - 13518 35 153 0.653 （45 14 ）73 710 10 - 719 - 1219 + 119 2513 52 310 13.098.124.88 12103450075 18 12 (35 109 ) (215 311 )1511一、口算下面各题。（23分）102.65 0.90.08 528349 614.4 240.0412.342.3 03.8 0.770.33 71.4 67.50.257.284 51.41.6 4001258 1.940.5 800.125= 3 = 6 6= 2 ( + )= 10 2=3.273.27= ( )12= 187.711187.7= 1 62.5%=二、写出下列每题在简便运算时所运用的定律或性质(12分)4 +3.25 +6.8 25(80.4)1.25 7 (2 )( ) ( ) ( )( + )72 93.53 162.5( ) ( ) ( )三、用简便方法计算。（65分）1125997 998+1246+9989 （870087087）87 1258.8 1.34.253.73.75 17.15（3.52.85） 3.4993.4 4.81.01 0.4（2.573） （1.61.61.61.6）25 （ ） 12.32.455.74.55 2 0.1250.2564 64.2870.6421300 78367.87417 2.42 +4.58 43 25100 4.253 (2 1 ) 3.83.93.90.10.13.9