1、 北师大四年级上册数学简便运算练习12668600254 553664551251875512278 60025 12538125302532(880)125 234805 781499 400425 7899925162510 2516125 (12516)8 799979781101781 79167978796 25101 8001252000125 659365665 9999999999 2214+638+286158+262+138375+219+381+225500124710212322 (181+2564)+2719378+44+114+242+222276+228+353+
2、219(375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+999997755(2187+755)30657381065 899+344 3999+4982357183317357 23651086214 497299 2370+19951883398 12257524138254(13125)(38) (12+24+80)5070425 17364032 25321251781011789819932(25+125) 88125 10276 58988436+6484 7599+275 83102832123181233+85123 50(
3、344)317899+178 7942+79+7957 730025425(24+16)81004754970070016800120124824附加题:30100210032000400315015480025215001252356(1356721) 1235(17801665) 7527+192531870+13310 4(2565+2528)第一种(300+6)x1225x(4+8)125x(35+8)(13+24)x82 第二种84x101504x2578x10225x204第三种99x6499x16638x99999x99第四种99X13+1325+199X2525X32X1253
4、2X16+14X3288X12578X4+78X3+78X372X125第五种125X32X8第六种3600254 8100475300012581250255第七种1200-624-762100-728-772273-73-27 847-527-273第八种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+57 690-177+77755-287+87968-599第十一种871-29915
5、7-99363-199第十二种2 178X101-178 83X102-83X2第十三种17X23-23X7 35X127-35X16-11X3564(8X2)1000(125X4)第十四种375X(109-9)456X(99+1)容易出错类型(共五种类型)600-6015 20X420X4736-35X2025X425X498-18X5+25 56X856X8280-80 4 12X612X6175-752525X825X880-20X2+6036X936X915X97+336-366-6 25X8(25X8) 100+45-100+45100+1-100+1102+1-102+113+24
6、X848X99+1 1000+8-1000+85+95X2865+35X1325+75-25+75 40+36020-10672-36+64324-68+32100-36+642第二种84x101504x2578x10225x204第三种99x6499x16638x99999x99第四种99X13+1325+199X2525X32X12532X16+14X3288X12578X4+78X3+78X372X125第五种125X32X8第六种3600254 8100475300012581250255第七种1200-624-762100-728-772273-73-27 847-527-273第八
7、种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+57 690-177+77755-287+87968-599第十一种871-299157-99363-199第十二种2 178X101-178 83X102-83X2第十三种17X23-23X7 35X127-35X16-11X3564(8X2)1000(125X4)第十四种375X(109-9)456X(99+1)容易出错类型(共五种类型)
8、600-6015 20X420X4736-35X2025X425X498-18X5+25 56X856X8280-80 4 12X612X6175-752525X825X880-20X2+6036X936X915X97+336-366-6 25X8(25X8) 100+45-100+45100+1-100+1102+1-102+113+24X848X99+1 1000+8-1000+85+95X2865+35X1325+75-25+75 40+36020-10672-36+64324-68+32100-36+642第二种84x101504x2578x10225x204第三种99x6499x16
9、638x99999x99第四种99X13+1325+199X2525X32X12532X16+14X3288X12578X4+78X3+78X372X125第五种125X32X8第六种3600254 8100475300012581250255第七种1200-624-762100-728-772273-73-27 847-527-273第八种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+5
10、7 690-177+77755-287+87968-599第十一种871-299157-99363-199第十二种2 178X101-178 83X102-83X2第十三种17X23-23X7 35X127-35X16-11X3564(8X2)1000(125X4)第十四种375X(109-9)456X(99+1)容易出错类型(共五种类型)600-6015 20X420X4736-35X2025X425X498-18X5+25 56X856X8280-80 4 12X612X6175-752525X825X880-20X2+6036X936X915X97+336-366-6 25X8(25X8
11、) 100+45-100+45100+1-100+1102+1-102+113+24X848X99+1 1000+8-1000+85+95X2865+35X1325+75-25+75 40+36020-10672-36+64324-68+32100-36+642第二种84x101504x2578x10225x204第三种99x6499x16638x99999x99第四种99X13+1325+199X2525X32X12532X16+14X3288X12578X4+78X3+78X372X125第五种125X32X8第六种3600254 8100475300012581250255第七种1200
12、-624-762100-728-772273-73-27 847-527-273第八种278+463+22+37 732+580+268 1034+780320+102 425+14+186第九种214-(86+14) 787-(87-29) 365-(65+118) 455-(155+230)第十种576-285+85 825-657+57 690-177+77755-287+87968-599第十一种871-299157-99363-199第十二种2 178X101-178 83X102-83X2第十三种17X23-23X7 35X127-35X16-11X3564(8X2)1000(12
13、5X4)第十四种375X(109-9)456X(99+1)容易出错类型(共五种类型)600-6015 20X420X4736-35X2025X425X498-18X5+25 56X856X8280-80 4 12X612X6175-752525X825X880-20X2+6036X936X915X97+336-366-6 25X8(25X8) 100+45-100+45100+1-100+1102+1-102+113+24X848X99+1 1000+8-1000+85+95X2865+35X1325+75-25+75 40+36020-10672-36+64324-68+32100-36+642