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1、396+3 + 225X 8+4985-168+4 648+480+3124-735+7(34 + 22) +845+ ( 15+ 3)(601-246) +5205+7X8 62- (25-7)32X4 + 72 305X3-154523+248-475 470 5-28459+9X7 294+ 399 + 7264+159+47892 537+469900-473- 227406+369+ 94683 + 258-383359+ 432-18981 81+9460+177-177698-245-155456+299+81542-128-272853+ 109- 85363X7+540550
2、+45X9838-(138+275)96X4 + 80120+800+1057X 8-406208+342+292803-589+11199X2+3235 178 165615X3 + 745X93351000-487-5138X37 + 460289+578-189329+332+ 171836 + 529-436207X8-987123+377X21948+539-648406X7 669438+279+362200+ 150X30+ 5650+50X3 2106012+ (200-194) +936720+(15 3X2)3889- (108+41)X5(800+ 200+50)X345
3、+165+396040+ 20- 15640 + (8020X 3)44X12 + 29550+ 11015X436835X 11(365-328) X ( 7355)(4535-500)+ ( 782777)63248X 12 + 86252+ 6+35X 7672+ (3X25 73)48+(2+6)703-24X25(252+144) + (308-298)23X46 + 293X (515-428)82 + 41 X 68(69+ 21)X(72+8)(16+ 20)X35(126 87) X 12+26234 +(205199)(75+315)+ (25 -20)100+25 + 4
4、(10+ 25)X44(420+60)+(275 245)25X32X 125460+ (3021 + 3)9000- 75 X 24960+15 28(49 + 21)X(48+ 8)45+ 180+ 30- 684 4X9+613575+ 5182+13+ 34X 345+120+(306)196 + 24X18466+14X 22400+ 60-16X 2420 +(205 198)X 444 X 12+29203135+9(84-4) X9 + 6(65+250) + (1813)36 X 13 +207+ 328+120X8(124-85) X 12-21825- 45-9X24(2
5、70-180) +307212X6 + 43(59+31)X(96+8) 1024- (680+640+8)640+8 50987+3X696 X (2875+ 5)1674- 45 + 9X10056(25+ 17)291X4X5555X7X478X3 + 91005 + 5+3996+6X2256 7 5150X4+10726+274X34176 + 3 + 21912X3 + 45614- (3000+ 614)45、6024+3 + 42800X5 + 41089- (400+311)328+ 16X2(10036) +4718 75X3(187 24) X52335- 74X8275
6、X6 + 35X (399-214)(582 + 6467) +7424X3X2328+ 172X6516-123+77347X4-1922762- (76278)6X25+75X637 X 100-37451 + 549+334+306X2720+8 801865-468-3324X38123689 + 498-689169+584+731345+255+ 5257X4+2256+389+211567X2X5369X2 + 3258+493-5845X9 + 55X919898X 2(741-159) +654-6- 5167+45+282763-84- 163468 + 28+32405
7、+ 9X3456-178-256345+456+155(321 39) +684+ 7+35X4540 + 9300 + 6480+8 + 320 + 4120X390X230X4 + 60X 5488 + 4 23X4180+9-18(48+52) +5100-25 420+80X 37X (34+56)105X2X5800-57 9(65+16) +9230 X ( 140-132)24 X 5+24 X 7(2534-958)+ 8792X7+ 9707 35 X 20(120 103) X 5050+160 + 40(58+370) + (64-45)120-144+ 18+35760
8、 + 10 + 3895 19 X 5 )+ 7424 X 5+24 X 7(95 95 ) +7414+20+585+14X 3284+16X 51208230X580 + 9-18(48+52) +5100-25X420+80X 37X (34+56)105X2X5800-57 X 9(65+16) +9230 X ( 140-132)24 X 5+24X 72534-958) +8792X7 + 9(5021-3918) X61208-237X54280+ ( 1911)190+360+24X8(140 + 60)X(268)78X7+828+18(359-42)X53+ 64280+6
9、50+134280+ ( 1911)78X7+81 + 9(5021-3918) X 6707 35 X 201000- (280 + 650 + 5)120-144+18+35+ 74760 + 10 + 38(95 19 X 5 )45 X 20 X 3(270 + 180) +5347+45X 24160+5295+ (64-45)178-145+ 5X 6+42420+58064X21+28812-700(9+31X11)(36+64) X 6585+14X (14-8)(284+16) X 8120-36X2(58+37) X 522X4 + 22121X3+41040 + 2+17
10、4147+72+89X4+4202X80 + 481 + 9 + 87766X5+774921+7X 480X 6X2770+ 7+65807+20+ 2100 50 + 535- 35+7302+30 X 2600X8 + 340+100+5434+25 X 560- 12X364 + 8+456640+60 X 45X7 48 + 642 + 7+36 + 637X 4+19X810X 4 20 + 415+3+10 + 525+ 5 + 42 + 635 + 5 + 8X772 + 936+621X454 + 972 + 8 + 9X536 + 4+21X225+ 516 + 456 +
11、 7 + 36 + 6500X(400-396)72+9 5564+264-4537650-(546+4530)65 X 9-4509X80+9809000-(4500+250)6700+72+812 + 6 + 45X38X(910-720)760-540+11106500+1250-350080X 30+56009450-3200-42002400+6 45800X 7-1801600+2+ 2304000 + 8 + 350320+8+64270 + 3 X9630 + 9 + 3202800+32X 6300+6X9(6900-2400)+ 5(72 + 9) +(56+8)54 +
12、9 X8280X 4 +560X8+157060X(23-17)960+4X9350+5X9450 + 5+1250(6900-2400)+ 575+15 + 20X53090+6X6(387-387)+0160-160-80750+550+5187+299-299587+496-6742660+26 + 4153+153+65732 + (32 + 4)300-(300-222)75+15 + 20X5(150 75) X (25 20)339010X 95687+ (9967)1000+ ( 1000 988)3560 + 20X90(250-150) +(30 + 6)687+999+3(4870-3675) +7200+9(9467-5642)+(350+7)120-36X 4+18+35(58+37) + ( 64-9X5)
三年级数学下册练习脱式计算题300道题
