苏教版四年级下册数学简便计算题(李保中)

1、9999+8888+7777+6666100-35-25245 (45+39)225X32X125178 M01-17884 )36+64X8425 X (24+16)75X99+7583X10283X275X27+19X2531 870+13X310123X43-43 >2338X29+3850 X(34 >4) >335X37+65X 37123X18123X3+85X12345X71 +29X45(140-70) X54345+994 X(25 >65+25 X28)124+78+2225 >27X415X7+85X7125X64(40 4) X2575X4

2、316X76 76X6407 9999 53+53 X103 X3528X25473+59+27+198 9941 X25-25125X (8X4) X588 M2512X9855X 9912X29+1258X199+5855X 99+55442X79+4269 X 1016955X2155125 X (80+8)125X (80X8)99X99+99125X 32X2538X7+31X1425X46+50X2779X25+22X25 2576 36+36 >249999X2222+3333X 333497 X887 X812555X32(80+8) X12555 M0256 国855

3、72 + 55 27 + 5534X29+29 >66619 >99 +19235X562135X562199 6356 卬+44 >27201 >8626 X 34+78X34-34X4299X131999 >34114X 1414X 1444磔16X24+79 >24+24 >5123X5757X2386X14+14X14199 6536&+ 36 >6698X73103 >392003 >34125 X8+80)(40+8) >2536 X (100+50)86X (1000 2)42国829 9983+83X99

4、724X (2+10)15 (40次8)75>23 + 25或363 43+57>6393 >6+93 >4325 113 325M378M0228M8 8X2869 ¥0256 X0152 M02125 8125>4131 >9925 M938X62+38X3875X1470X14101X3875X 23+ 25X2363X43+57X 6356 X 101956+56X9999X99+ 99125 81-12575M017591 3191(40 + 8) X 25125 X (8+80)36 X ( 100+50)36x 34+36X6624X

5、 (2+10)86 X ( 1000 2)15X (40 8)93X 6 + 93X4325X 113-325X 1328X 18- 8X2811125X8142X98201X8625X4131X99125X7929X9925 X3983+ 83X99235X562135X56299X99+9956乂 27+44X 27199X63299 X 1385X98125X7956+ 56X9934X29+29X 6626X34+78X 3434X 41999X 3416X24+79X24+24X538X62+38X38101X3812 X9855X99+551244X2586x 14+14X14199X6598X73114X1414X 14123X5757X2375 X 101-75103X392003X34(40+8) X 25125X8112591 X31-9175X1470X 1455X 9912 X 29+1258X 199+5869 X 1016942X79+4255X2155125X (80+8)125X (80X8)125X32X2579X 25+22X25 251499X99+9925X46+50X2738X 7+31X 149999X 2222