六级数学下册简便运算专题练习

1、年级数学下册简便运算专题练习 简便计算练习题1得分158+262+138375+219+381+2255001 - 247 - 1021 - 232181+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+19953999+4981883

2、- 39812X2575 X24138 X25 X4(13 XI25) X3 >«)(12+24+80) X50简便计算练习题2得分704 X2525 X32 X12532 X(25+125)178 X101 17884X36+64 X8475 X99+2 X7583 X102 83X298X199123 X18 123 X3+85 X12350 X(34 >4) X25X 24+16 178 X99+17816800 +12030100 +210032000 +40021500 +12549700 +7001248 +243150 +154800 +25简便计算练习题3

3、得分2356 1356 -7211235 1780 - 166575X27+19 X2 531 X870+13 X3104X(25 X55+25 X28)(300+6)x1225x(4+8)125x(35+8)(13+24)x884x101504x2578x10225x20499x6499x16638x99999x9999X13+1325+199X2532X16+14X3278X4+78X3+78X3125X32X825X32X12588X12572X125简便计算练习题4得分3600 +25 詔8100 +4+753000 +125 +81250 +25+51200-624-762100-7

4、28-772273-73-27847-527-273278+463+22+37732+580+2681034+780320+102425+14+186214- 86+14 787- 87-29365- 65+118 455- 155+230 576-285+85825-657+57690-177+77755-287+87871-299157-99363-199968-599简便计算练习题5得分600-60 勻520X4+20X4736-35X2025X4+25X498- 18X5+2556X8+56X8280-80 +412X6+12X6175-75 +2525X8+25X880-20X2+6

5、036X9+36X936-36 七-625X8 - 25X8100+45-100+4515X97+3100+1 -100+148X99+11000+8-1000+85+95X28102+1 -102+165+35X1325+75-25+7540+360 +20-10324-68+32100-36+6499 X55 + 55得分26 X39 + 61 X26356 X9 - 56 X978X101 - 7852X76 + 47X76 + 76134 X56 - 134 + 45X13448X52X2-4X4825X23X40 + 4999 X999 + 1999184 + 98695 + 202

6、864 - 199738 - 301380 + 476 + 120569 + 468+ 432 + 131704X25256 - 147 - 53373 - 129 + 29189 89 + 7428 X4 X25125 X32 X259X72X125得分720 +16 弋630 刊2456 256 - 36102 X35 98 >42158+262+138375+219+381+2255001 247 1021 232181+2564 +2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101

7、799+999+9999+999997755 - (2187+755)2214+638+2863065 - 738 - 1065899+3442357 - 183 - 317 - 3572370+19952365 - 1086 - 214497 - 299得分3999+4981883 - 39812X2575X24138 X25 X4(13 X125) X3 >8)(12+24+80) X5025X32X12532 x(25+125)88X125102 X76178 X101 - 17884 X36+64 X8475 X99+2 X7598X199123 X18 - 123 X3+85

8、X12350X(34 >4) >325X 24+16 178 X99+17879 X42+79+79 X 577300吃5刊8100 -475158+262+138得分1248 +243150 -154800 +2521500 +125375+219+381+2255001 - 247 - 1021 - 232181+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 -

9、 738 - 1065899+3442357 - 183 - 317 - 3572365 - 1086 - 214497 - 2992370+19953999+4981883 - 398得分12 X2575 X24138 X25 X4 (13 XI25) >(3 >8)(12+24+80) X50 704 >25 25 >32 >12532X(25+125)88 X125102 >7658 X98178 >101 - 17884 >36+64 > 8475 X99+2 > 7583 >102 - 83 >298 >1

10、99123 >18 - 123 >3+85 >123 50X(34 >4) >25X 24+16 178 X99+17879 X42+79+79 X 5721500 -1257300 -2548100 -4-7516800 -120a b c = a b + c10 0.432 2.5689.3 5.26 2.7414.9 5.2 + 4.918.32 5.47 4.32a xbXc = ax b Xcc x a+b= c 冶 + c xb简便计算练习题12得分3.28 >5.7 + 6.72 >5.72.1>99 + 2.123 X0.1 +

11、2.3>.90.18 + 4.26 - 0.18+ 4.260.58 >.3 -0.58>37.3 - + 2.7 >0.253.75>0.5 2.75-a -b=a-b>>c6.3-89.51.95.26>0.125 + 2.74930 -).663.4-.5>812.8- 0.4-.47.7 + 1.54XI.6-0.7简便计算练习题13得分6.9 + 4.8 + 3.115.89 + (6.75 - 5.89)7.85 + 2.34 - 0.85 + 4.6635.6 - 1.8 - 15.6 - 7.213.75 - (3.75 + 6.48)66.86 - 8.66 - 1.340.25 X16.2 >40.25 >32 >.1252 .5 (>+0.4)(1.25 - 0.125) >4.