小升初计算题重点讲义资料

1、能简算的要简算13421 X- - X2 + 3X80%15515X +1327513十一2 1264-24 义(1-5) + 337877,62- + 1313536X(2 2-13 + A)94125(10x13 + 233955XV231 1 X (7 + 1) + 1 2586332一x 十 x +8555 X1 + (2 -) - 22105工+ (5-1)x 3 x -2063311+62)xA310435X (15) + 33 X2 85127+ (2+1) X z+f 536551、)X 243+215+3_2151-“X - + X 25%42412105X13 - 1890

2、 -182 + ) 39281233X 99+3 HH 3775. 98X+Xx1 +*一)20x( 31 + 1) 45275X X 321 +28X5+ (5 1) 1569342X ( 13) + 3 7264X5673- ) X 24461+ 一27义8+1927X335X3-5240 +450+15 X + + - -h 5115111- (-1)24216203 X 45+180 +121x及+犯+4427 27F(：) + 37 5 3 1532x40+450 + 183+ (二)"3 6 4 8X + I1- 21X42十38十X-7 11+ 18 18lol上(心

3、+ 心)X”8 4 5 9X + X9 1 2 4I-上X (IN+2 二20 2 5 5 k(+I-) +50%41 1上(卜)xg X627 36m X3 + 5 X k+k X 1018 18 181 1X ox ( 十 )3 93 1 8 3 7 X + X 5+ 1 X " +(】4 3 9 4 167 3 3 7I-+IGIG+I-(8。56。方 X 99+99x8。9 5 5 92 4 17 1 +( + ) X X IT 3 7 2 25 32H，2 1 X X+2H145 43 1IXX+1H1332253 X +4x=-:x x:x(1+23 51534 -:8x

4、:3-4x: 1:x=24:122 x 1 x6311-:x:4 16203x3x+3义962x+:36%1:1-x:1x+<-11x1 X2-4X- 8x-x - x6:xx 161.5 41 1 x +1x33X+1x12x+73 152 :4-x: 3324-:x55x 1 720 9+ 3X4:1x:15:x-:68x-3X9374 :x:369X 52xX30%1-x:、脱式计算（能简算的要简算）1+4.2x3X3102-18 7.230(1+10%)x332+ (4-X -)512 15131 x 4 X2+3 X85%1515325-1+32126 436 X4 12-24

5、 X (1 5)+ 337-+6-21313510391 1 X5x3 +57+1)3X35%轨x (3(-15 +5)2,4、(1514X -)+ (12X1220382141+1 +1 +12 6 12 20521 192+8X 13x89-33(77 + 9)99797X 59X+1 X25X Xv 27X 14+75%1530四、解方程XH 1x= 6126.5 1084X+80%轨1+lx3 33+ + 82x=40%x =285 )16-+- =14 21“-x20%x=122.68.=x:1291 ,(x+9)=5 x3-=x:6X 72-2x=3X 75%- 3x=4.5X99

6、X41X25%- +60X15 132X+X67+20151- ( 1+-)5 10(1-1-1+1)23 64112X98+X2(+)“ 1 2、 +(i+a)11+X25% 4义-13(it)64+9. 9+99X24491719)X 17 X1925X X 3251X +51X4311 + 772_2_X3+工11 13 13 15 15 17 17 19 191943X 1014(14 X7 X 7)15152815X 32 X 25%1X99+47|x 7131一+ 13+ 1 +351635111X46-1)436x (14x2 人) ,52 +9, 1+27 X + 1 X131

7、3/ 5 . 1、+ , , +5 7454 +80%< 517192598义 X40X13X 21X 19X +X +X2+3)8义969721 1948X ( 1+7 5)3 86+ 一+13 3 51 八“X -+X25%436 X ( 1 + 1 1)9 469 112 .25X32X125171 50%2121144444+9- +99- +999- +9999-555一+£X99+(1 12200939274X511. +一)3 620073927+51123 412x3 X201 35 1 X36x x 5X722008(5-) +10+6 161005+ 42X

8、(912X4x x5317)45+(5a)x2(1+3) X112+ 4+X25%5857X X 80X 2432XXX14151 114(2-)15101111+x+x 2 6 12 5x65959解方程20 30 42 5678 1511X9 X915 810953 (X5) HXLX 3 on 1 +1XH35 4 8 3X+4 XICH58XH3 5x 20%xh7 9 一 XH- I +XH15 I3 74 2 3 ; 1n9 3 8 212X8XH20 12 +1H4 0000 6 -H - I HK. xP36 47 5L 一 25%HIa乂8 62 1 IXII XH 3 54

9、0%x 14H72 3 1 :m x+ X1H65 4 61 1 281-(1 + 小) X +x4 4 51DO1 4 4 2。电|-+2。%<|0+ 6。 40%x (小:72 < 3。、6 1 、1 1 I ( + X5O%)+ 10 2 5 7 4 4 55 2 15X x+% m XK+J) + K】11 5 3 6x+x I+I9 3 4X (KIG) X ( + ) XSX25X4 4 1311 3 27X98+X2 49 XI-十I-+ L+代 +4 4 1。 8+ 4+X XIX卜11 34X1 -+ICX 424 74 9 400。(6。+2|) XI-P】中5

10、 1。 7389710!。殳 8上(I-3+) X 31C】11 5X +电一X +X(ICIC二 X4 8X43+X38+398X12+ICX2O%<IC531XIX7 7 4X X 4XIO上(3 l)x 2】7 7 2 54 4 4 4 4 仙 +9 件+99件+999+9999忏5 5 5 5 54 3 5X22+X H+I0+IC9 5 91 2 3( + K Io) X 242 3 4I (+) 82 5 X X (18X 14)7 9【(4z)x2tio2 3 93 11 164 X + X 34 4 11 11 4X 43+X8930 74 <5 X 96XL27+

11、X995 < 7 7 < 611 15 15 111。)5 、1 5,;( 十)I (+) X +5516X 12XX99+x=+ 10=2 X63x=11258xX -=96X 9416x 1 x= 5236x30%x=843 (x+)=+ =104 x5 1125%x=18i2:x=2:(x+=833x+8=3554：x=1：1o5113 :x=4:4+ x=+ =50x:X4 2x=x:10%=3:20%_2_x_ =工 134 12x:28%=51 ，一 - 1x12=4041X 3x=18=4x x 13 =54 63x=410:x=2：-5x = 3720.84x +8=125 x 1 _ x 124x (18 x)= x =3033x (180% x=424x=33+13x3:x=2:525%x1+ 1=3633:4=x:8x4=(