三年級數(shù)學(xué)脫式計算

1、824+ 4X 3=(601-246) +5=201+232-365 TOC o 1-5 h z (25+38) X 15=(59-187) + 3=1500-125X825X8X9=(601-246) + 5=201+232-365(25+33) X 26=2+3X56=63X 147-198735-35X 12=540 +(65-59)=789-13X422X4 + 221=21X3+410=40 + 2+174640 + 60X4=5X7一48+6=2 / 18147+72+8=9X4+420=2X80+4 TOC o 1-5 h z 120X5+2=202+36 + 9=30 + 5+

2、24081 +9 + 877=66 X 5+774=921+7X480 X 6 X 2=770+7+65=807+20+2100 50+5=3535+7=302+30X2600X 8+3=40+ 100 + 5=434+25X537X4+19X8=10X420+4=4 / 1860-12X 3=64+8+456=640+60X4 TOC o 1-5 h z 56+7 + 36+6=500 X (400 396)=72 + 95564+264-453=7650-(546+4530)=65 X 9-4509X 80+980=9000-(4500+250)=6700+72+814X6+9X5=900

3、+(71-68)=180+9-42 + 612 + 6 + 45X3=8X(910-720)=760-540+111025+5 + 42+6=35+5+8X7=6 / 186500+1250-3500=320+8 + 64=54 + 9X8 TOC o 1-5 h z 80 x30+5600=270 + 3 X 9=280X 4 +59450-3200-4200=630 +9+320=60X8+15702400 + 645=2800+32X 6=60X(23-17)800X 7 180=300+6X 9=22X4+2211600 + 2+230=(6900-2400)+ 5=21 X3+410

4、4000 + 8 + 350=(72+9) +(56+8)=10050+5147+72+830+5+2409X4 + 42035 35+ 781 + 9+8772X 80 + 4302+30X 2921+7X4120X 5+2600X 8+380X6X2202 + 36+940+100 + 5770+7+6530 + 5 + 240434+25 X 5807+20 + 281+9 + 877三年級數(shù)學(xué)脫式計算21 X4-54-9760-540+111072+8+9X 56700+72 + 836 + 4 + 21X214X6+9X56500+1250-350025+516+456+7 + 36

5、+6900+(71-68)180+9-42+680X 30+56002400+6 459X 80+9809000-(4500+250)12+6+45X 38X (910-720)800X 7-1801600+2+2304000 + 8 + 350320+8 + 64三年級數(shù)學(xué)脫式計算第60X 8+157075-15+20X5270 + 3X 93090+6X6630 + 9 + 32060 X (23-17)(387-387)+02800+32 X 6960 + 4X9(6900-2400) + 5350+5X9160 160 + 80(72 + 9) + (56+8)450+5+125075

6、0+550 + 5280X 4 +5(6900-2400) + 5(111 + 189)X3125X 8+ 1006X250X0(1 + 7)x (16-6)三年級數(shù)學(xué)脫式計算第8頁687+ ( 99 67)1000+ ( 1000-988)3560+20X 90(250 150)+(30+6)687+999+3 TOC o 1-5 h z 810X4+4=32+(32+ 16)33+11 + 4X9=300-(300-222)187 + 299-299=75+ 15+20X5587 + 496-674=(150-75) x(25 20)2660 + 26+26=3390- 10X95153+

7、153+657=(4870-3675)+7200 + 9960 + 4X9(9467-5642) + (350 +450+5+125070)350+5X9三年級數(shù)學(xué)脫式計算(6900-2400) 533+11 + 4X9(111+189)X375+ 15+20X 5187+299-299125X 8 + 1003090 + 6X6587+496-6746X250X0(387-387)+02660+26 - 26(1 + 7)X (16-6)160 160+80153+ 153+657810X4 + 4750+550+532+ (32+ 16)75+ 15+20X 53390- 10X 9530

8、0-(300-222)(150-75) x(25 20)三年級數(shù)學(xué)脫式計算10頁22X4+2212X80+4687+ ( 99 67)21 X 3+410120X 5+21000+ ( 1000 988)202+36+93560 + 20X 9040+2+ 17430 + 5+240(250 150)+(30+6)147+72 + 8687+999 + 39X4+42081+9+87766X 5+77480X6X2807+20+2921+7X4770+7+6510050+5三年級數(shù)學(xué)脫式計算第11頁35 35+742 + 7+36 + 6302 +30 X 2600X 8+340+100+54

9、34 +25 X 560- 12X 364+8+456640+60X45X 748+637X 4+ 19X810X420+415 + 3+ 10 + 525 + 5+42+621 X 454+925 + 5 16+435 + 5 + 8X 772+8+9X556+7+36 + 672+936 + 636+4+21X2三年級數(shù)學(xué)脫式計算第12頁 TOC o 1-5 h z 500 X (400-396)=900+(71-68)=9x80+980=72+95=180+9-42 + 6=9001-(4500+250)=564+264-453=12 + 6+45X3=6700+72+8=7651-(5

10、46+4530)=8x(910-720)=14X6+9X5= 65 X 9-450760-540+11109450-3200-42001600-2+2306500+1250-35002400-6-454000 + 8 + 35080 x30+5600800X 7-180320 + 8+64270 - 3 X9630 + 9 + 3202800+32 X 6300-6X 9三年級數(shù)學(xué)脫式計算(6900-2400) - 5(72+9) - (56+8)54 - 9 X8280X 4 +560X8+157060X(23-17)960+4X 9350-5X 9第13頁450 + 5+12503090+6X6750+550 + 5(6900-2400) + 575+ 15+20X 5125X 8+ 1006X 250X0(1+7)X(16 6)810X4+4(387-387)+ 0(111 + 189)X3160 160 + 80三年級數(shù)學(xué)脫式計算第14頁33+11+4X9=153+ 153+657187+299-299=32+(32 + 16)587+496-674=300-(300-222)