新人教版小學(xué)六級數(shù)學(xué)練習(xí)題(解方程+簡便運算)

1、解方程、簡便運算強(qiáng)化訓(xùn)練、解方程。3X=82 = 77 16123虧寧X=W325V X 572X-0.25=X=30%44-X = 3.625% X + 15%X =45531XX 3 =20X 150% X +54X - 15%X = 68XX+ - X=31 、，1 、，X+1X +X = 4X=202646X+ 5 =13.44 X-6 = 383x+24 X 3 X 9 = 29 5X214X6 X =23330.36 X 5- 4 X =5X - 0.8 X = 16+6I ( X -4.5) = 72X十-=122(X-2.6)=8342135 X-1 X=1301XX ( 6

2、+3138)=石5X 0.375 X = 5620 X - 8.5= 1.54X -5 X -4= 214+0.7X=1021 X - 25% X = 10、簡便運算。3634X 350.65X1011.25-0.125 : X 8325 8 X 813 X 10.22.6X 992(12+) X77_10X 101-7_1016 X 7313513 57X 103- X 2-2525250. 92X 1.41 + 0. 92X 8. 592. 25X 4. 8+77. 5X 0. 484.8 X 7.8+78 X 0.521. 3X 11. 6- 1. 6X 1.3463627.5X 3.7

3、-7.5 X 3.777_5X一+ -X一+ - X71371395911227227 % (15 x 28)% 154.36x 12.5 x 82.5x 32 x 1.251.25- - x 0. 8315.28888x -x -99 99146.5- 23+46.512.89-(3.89-1.6)73.8-1.64-13.8-5.3615.75+3.59-0.59+14.255.48-12. 06+ 5. 07 + 2.9430. 34+ 9. 76- 10. 34二、簡便運算。712 - 156036 x34350.65 x101X82538 X824 X -)(12+ ) X-4= 2

4、113 X10.22.6 X99X - 45 X47 013 +37 X6130.92 X8.5927.5 X3.7-7.5 X3.70.92 X1.41 +710 X101- 71035 X99 + 3530.34 + 9.76 10.342.25 X4.8+77.5 X0.484.8 X7.8+78 XJ.521.3 X11.6 1.6 X.3227 X15 X2728 ) X2154.36 X12.5 X82.5 X32 X1.2589 X89 弋9 X8912.06 + 5.07 + 2.94146.5- 23+46.512.89-(3.89-1.6)15.75+3.59-0.59+1

5、4.25-5.365.48- 4 X 3 X9 = 295X 3X =4X 6 X=20.36 X5- 34 X = 35X - 0.8 X = 16+623 ( X - 4.5) = 7X - = 12 4+0.7X=1022(X-2.6)=825 X-13X=310X X( 16 + 38 )=131225% X = 10X 0.375 X =20 X -8.5= 1.512 X -二、簡便運算。36 X34350.65 X10135 X99712 - 15X60+ 351.25-0.125 X82538 X8710 X101-71027.5 X3.7-7.5 X3.7(12+ ) X13 X0.22.6 X99710X01- 71047 冷13 +37 凈130.92 X1.41 + 0.92 £59227 >15 X2728 ) X2154.36 X12.5 X82.5 X32 X1.251.25 -X0.89.6 £.2 弓15.2 弋.25 嗚89 X89 充9 X89X3 -X3146.5- 23+46.512.89-(3.89-1.6)