簡便計算分類練習題

1、簡便計算分類練習題第一種(300+6)x1225x(4+8)125x(35+8) (12+24+80) X 5032X (25+125) 25 X 24+164X (25 X 65+25X 28) (13+24)x8第二種84x101504x2578x10225x204704X 25 88 X 125 102 X 76101 X 87第三種99x6499x16638x99999x9998 X 199 58 X 9899 x2798 x34第四種99X13+1325+199X2532X16+14X328X 99+17879X 42+79+79X 5784X 36+64X 84 75 X 99+2

2、X 7575 X 27+19X 2 5 31 X 870+13X 310 78X4+78X3+78X3第五種88X12572X1275X 2412X 25125X32X85 X 24 25X32X1250 X (34 X 4) X 3138X 25X 4 (13 X 125) X (3 X 8) 25 X 32X 125第六種3600- 25-48100- 4- 753000- 125- 81250- 25-57300十 25-4390039X 254205X 780020X 8第七種1200-624-76 2100-728-772273-73-27847-527-2735001 - 247-

3、 1021 - 232 2356 1356- 7211235 1780- 16653065- 738 - 1065 2357 - 183-317-357 2365 - 1086- 214第八種278+463+22+37732+580+268425+14+186 158+262+1381034+780320+102375+219+381+225 2214+638+286181+2564+2719 378+44+114+242+222 276+228+353+219(375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999第九種214- 8

4、6+14787- 87-29365- 65+118455- 155+230第十種576-285+85825-657+57690-177+77755-287+87第十一種871-299157-99363-199968-5991883 398497- 299 899+3443999+4982370+1995157+99第十二種178X101-17883X102-83X217X23-23X73 X 102 83X2178X 101 178 35X127-35X16-11X35123X 18 123X 3+85X 123容易出錯類型共五種類型600-60十 1520X4十 20X473635X2025

5、X4十 25X498-18X5+2556X8- 56X8280-80 - 412X4 12X6175-75-2525X8- 25X880-20X2+6036X9 36X936- 36*6 -6100+45-100+45 15X97+3100+1-100+148X99+11000+8-1000+85+95X28102+1-102+165+35X125+75-25+7540+36(* 20-1013+24X8672-36+64324-68+32100-36+64簡便計算綜合練習題1得分26X 39+ 61 X 26356X 9-56X 9 99 X 55+ 5578 X 101-78 52 X 7

6、6+ 47 X 76+ 76 134 X 56- 134+ 45 X 13448X 52X 2-4X 48 25 X 23X 40+ 4999X 999+ 1999184+ 98 695 + 202 864 199 738 301380+ 476+ 120 569+ 468+ 432+ 131704X 25256 - 147-53 373 129+ 29 189 89+ 7428X 4X 25 125 X 32X 25 9 X 72X 125簡便計算練習題2得分720- 16-5 630 - 42 45 6 256- 36102X 35 98 X 42 158+262+138 375+219+

7、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+99999 7755- (2187+755) 2214+638+2863065 738 - 1065 899+344 2357 183-317- 3572365- 1086 214 497 299 2370+1995 7755 (2187+755)簡便計算練習題3得分3999+498 1883 398 12 X 25 75 X 24138X

8、25X 4 (13 X 125) X (3 X 8)(12+24+80) X 5025X 32X 125 32 X (25+125) 88 X 125 102 X 76178X 101 178 84 X 36+64X 84 75 X 99+2X 7598X 199 123 X 18 123X 3+85X 123 50 X (34 X 4) X 325X 24+16178X 99+178 79 X 42+79+79X 577300- 25-4 8100 - 4-75 158+262+138簡便計算練習題4得分1248- 24 3150 - 15 4800 - 25 21500 - 1251680

9、0十 120 30100 - 2100 32000 - 40049700- 700375+219+381+225 5001- 247- 1021 - 232 181+2564+2719378+44+114+242+222 276+228+353+219 (375+1034)+(966+125)(2130+783+270)+1017 99+999+9999+99999 7755 (2187+755)2214+638+286 3065- 738 1065 899+344 3999+4982357 183- 317-357 2365 - 1086-214 497 - 299簡便計算練習題5得分12X

10、 25 75 X 24 138 X 25X 4 (13 X 125) X (3 X 8)(12+24+80) X 50 704 X 25 25 X 32 X 125 32 X (25+125)88 X 125 102 X 76 58 X 98 178 X 101- 17884X 36+64X 8475X 99+2X 75 83 X 102- 83 X 2 98 X 199123X 18- 123X 3+85X 123 50 X (34 X 4) X 3 25 X 24+16178X 99+178 79 X 42+79+79X 57 21500 - 1257300- 25-4 8100 - 4-

11、75 16800 - 120簡便計算練習題6得分a+ b+ c = a + b+ c)2.73 + 0.89+ 1.27 4.37+ 0.28+ 1.63+ 5.72 a b c = a b+ c10 0.432 2.568 9.3 5.26 2.7414.9 5.2 + 4.918.32 5.47 4.32aX bx c = a x b x c 25 X 6.8 X 0.04 0.25 X 32 X 0.1256.4 X 1.25 X 12.5c x a+b= c x a + cx b0.45 x 201 0.58 x 10.1 50.2 x 99 4.7 x 9.9得分3.28x 5.7

12、+ 6.72 x 5.7 2.1 x 99 + 2.1簡便計算練習題723 x 0.1+ 2.3 x 9.9 0.18+ 4.26 0.18 + 4.260.58 x 1.3 - 0.58 x 1.3 7.3-4 + 2.7 x 0.253.75 x 0.5 2.75 - 25.26x 0.125 + 2.74 - 86.3 * 1.8 9.5* 1.9 x 812.8 *0.4 x 1.6930 * 0.6* 5 63.4 * 2.5* 0.4 7.7 + 1.54 丨* 0.7簡便計算練習題8得分6.9 + 4.8 + 3.1 15.89 + (6.75 5.89)7.85 + 2.34 0.85 + 4.6635.6 1.8 15.6 7.2 13.75 (3.75 6.48)47.8 7.45+2.5566.86 8.66 1.34 0.25 X 16.2 X 4 0.25 X