1、六年级计算题姓名: 班别:一、计算下面各题,能算便的就简便。0.832.512.5 7.69.90.01 8.320.58-0.320.581.255+0.2520 10.69-2.52.4 0.32.50.048.457+8.442+8.4 130.652 7.210.1-7.21.22.5+2.82.5 320.653.23.5 159816525(4+ ) 60( + - ) 0.35+0.6525412544151540.2537.5%+ 25% + 25% 854131741297210.350.65 4 + 41515452321655 - 5 2 1000851362912581
2、258( )15 9 32 51353912548 ( ) (3 )756215312415138小学数学简便运算一、口算下面各题。102.65 0.90.08 528349 614.4 240.04 12.342.3 03.8 0.770.33 71.4 67.50.25 7.284 51.41.6 4001258 1.940.5 800.125= 3 = 6 6= 2 ( + )= 10 2=731837513.273.27= ( )12= 187.711187.7= 1 62.5%=41 8二、先计算,后写出下列每题在简便运算时所运用的定律或性质。4 +3.25 +6.8 25(80.4
3、)1.25 7 (2 )312 154231( ) ( ) ( )( + )72 93.53 162.5128745217( ) ( ) ( )三、用简便方法计算。1125997 998+1246+9989 (870087087)871258.8 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 ( ) 9465187367102512.32.455.74.55 2 0.1250.256497519264.2870.6421300 78367.87417 17 8542137 0.125 0.5 2.42 +4.58 43 2510087214312654.253 (2 1 ) 3.83.93.90.10.13.9 12.1( + )1056543 152