小學六年級脫式計算題

408—12X24408—12X24用簡便方法計算下面各題46＋28)X6042X50—1715^5108＋47)X52125X(97-81)32+105F5469X12+14925000-56X23420X(327—238)6942+480^3304X32-15420+80^4-20=100^(32-30)X0=25X4-12X5=70X(42-42)F18〕=1、89+124+11+26+482、875-147-233．25X125X40X84、147X8+8X535、 125X646、 0.9+1.08+0.92+0.1用簡便方法計算89+124+11+26+48875-147-23147X8+8X53125X64計算下面各題．1.280+840^24X52.85X(95—1440^24)75X65+75X35=75X65+75X35=3.58870^(105+20X2)4.80400—(4300+870^15)5.1437X27+27X5636.81432^(13X52+78)7.125X(33—1)8．37.4－(8.6＋7.24－6.6)計算.156X107-772937.85-(7.85+6.4)75F〔138F(100-54)〕85X(95—1440^24)80400—(4300+870^15)240X78^(154-115)1437X27+27X56375-(12+18)〕-F152160F(83-79)X18〕280+840^24X5325^13X(266—250)85X(95—1440^24)58870^(105+20X2)1437X27+27X56381432^(13X52+78)[37.85-(7.85+6.4)]X30156X[(17.7-7.2)F3](947—599)+76X6436X(913—276^23)[192—(54+38)]X67[(7.1-5.6)X0.9-1.15]F2.581432^(13X52+78)5.4F[2.6X(3.7-2.9)+0.62](947—599)+76X6460—(9.5+28.9)]F0.182.881^0.43—0.24X3.520X[(2.44—1.8)F0.4+0.15]28-(3.41.25X2.4)0.8X〔15.5—(3.215.79)〕(31.83.2X4)F5194—64.8^1.8X0.936.72^4.25X9.93.416^(0.016X35)0.8X[(10—6.76)F1.2](136+64)X(65-345^23)(6.8-6.8X0.55)F8.50.12X4.8^0.12X4.8(58+37)^(64-9X5)812-700^(9+31X11)(3.2X1.5+2.5)F1.685+14X(14+208^26)120-36X4^18+35(284+16)X(512-8208^18)9.72X1.6-18.305^74-4-[D1X(3-色)]7 3 5 10(4+區(qū))-上+卩5 4 3 1012.78—0-(13.4+156.6)37.812-700-(9+31X11)(136+64)X(65-345-23)3.2X(1.5+2.5)-1.685+14X(14+208-26)(58+37)-(64-9X5)(6.8-6.8X0.55)-8.5(284+16)X(512-8208-18)0.12X4.8-0.12X4.8(3.2X1.5+2.5)-1.6120-36X4-18+3510.15-10.75X0.4-5.75.8X(3.87—0.13)+4.2X3.74347+45X2-4160F5232.52—(6+9.728^3.2)X2.587(58+37)^(64—9X5)[(7.1—5.6)X0.9—1.15]-F2.5(3.2X1.5+2.5)F1.65.4F[2.6X(3.7-2.9)+0.62]12X6^(12-7.2)3.2X6+(1.5+2.5)F1.6(3.2X1.5+2.5)F1.65.8X(3.87—0.13)+4.2X3.7433.02—(148.4—90.85)^2.5287X5+96990^3181554F[(72-58)X3]2800F100+789(947—599)＋76X6436X(913—276^23)(93+25X21)X9507^13X63+498723—(521+504)^25384^12+23X371(39—21)X(396^6)156X[(17.7—7.2)F3][37.85—(7.85+6.4)]X3028X(5+969.9^318)81F[(72-54)X9]57X12—560^35848—640^16X12960^(1500—32X45)[192—(54+38)]X67138X25X4(13X125)X(3X8)(12+24+80)X50704X2525X32X12532X(25+125)178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100F4F7575X27+19X2531X870+13X3104X(25X65+25X28)138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)102X7658X98178X101—17884X36+64X8475X99+2X7583X102—83X298X199123X18—123X3+85X12350X(34X4)X325X(24+16)178X99+17879X42+79+79X577300F25F48100H5158+262+138375+219+381+2255001－247－1021－232(181+2564)+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755－(2187+755)2214+638+2863065－738－1065899+3442357－183－317－3572365－1086－214497－2992370+1995138X25X4(13X125)X(3X8)(12+24+80)X5025X32X12532X(25+125)88X125102X7658X98178X101－17884X36+64X8475X99+2X7583X102－83X2附加題：附加題：2356—(1356—721)1235—(1780—1665)75X27+19X2531X870+13X3104X(25X65+25X28)98