六年级数学简便计算练习题

1、六年级数学简便计算练习题姓名得分3-+2-)400+ 125+82575X ( 37 X 8)二、用简便方法计算下面各题。（90分,1125 997998+124644X20+5X 2)-+3.2 + 5 2+6.8122-(1335(11)X1213 X 2 X -46415734 X (2 + )125X 8.84.35+ 4.25 +3.65 +3.753.4X 99+3.417.15 -8.47 -1.5317-33-455 乂110.125 X 0.25 X 3222.3-2.45 5.3 4.55(1-1+ + ) X 724.251218 24-3- (2 1-13)187.7X

2、 11 187.7432.42d c c c -322 x 6.6+2.5x 6511734853+2.25+58 +7427553+47 +256531145-16- +16 石32771_-X - + 57.125824.6+3i +6i+5.45344+39 37 +19 +171X - - 0.522.8+540.75+'3-4 xf5315 *(7+7.2+3-598 +4+0.375144145-2万+152 )3-1170.625 X 0.5+1 +To 2I65 +(24 -1.8)44444155+95+995+9995+9999548.3-156-4696 x 4.

3、25+44 +6X 62.5%35337 * 72n + 318992.5X (10 +1099+10 +10 )322X4 +25 X 75%-7X 0.75110.25X 63.5- X 13717817% X2.5-3 %喘39 +3.125+1 9 +181125-996(111+999) + 56 X(7 -3 )3149.5X10g -(50-”X0.61411 X419 +5197_ +11745><(9+,15 0.6)897-37.5%+104 X 0.375843.5X 11 +1.25X2-7 +3.8 + 441055.375)71 X 993755+299

4、68439+1001446+295888+99972 X 156-56 X 7225X 32X 125709X 99+70914. 0.25X 48c 3 c12.5X- 0.4X 4299X101563X 99951八322X6.6+2.5X6575.3X 99+75.34.6X 37+54 x0.370.125X3+1X8.25+12.5%8.37-3.25-(1.37+1.75)2100+ 204 84.6+3rll+6rll+5.4-I-7 I 4IV)I5 I 418 x252+工+ 216251616(99+ ) + 910(21x9+9x21) X 1774(32 X 1 + 17) + 412(25+ 3) + 1 + 1 444814 .,4,2、/ 105,4、11569957111+ (+ 一) 11(十 ) x 30一+ 3 十一x-4 -X58+ - >41 + 一1553653265105111188844 75145 ,2 .34, 51、53/41 、77x- x一X- +一十-胃(-)* 一235 - 135+ 18武 X 153 - 0.6X 53574256555828554310712119 - 19 +