初一有理数六十道计算题及答案和过程 初一数学简便计算题 要60道 给答案

\u6709\u521d\u4e00\u6709\u7406\u6570\u8ba1\u7b97\u9898\u5417\uff1f

\u6709\u7684\uff0c\u7ecf\u5178\u4f8b\u5b50\u5982\u4e0b:
(1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
\u94fe\u63a5\u5982\u4e0b:
http://m.doc88.com/p-310765492384.html
\u6709\u7406\u6570\u5b9a\u4e49:
\u6574\u6570\u548c\u5206\u6570\u7edf\u79f0\u4e3a\u6709\u7406\u6570\u3002\u6ce8\u610f\uff1a\u6709\u7406\u6570\u96c6\u53ef\u7528\u5927\u5199\u9ed1\u6b63\u4f53\u7b26\u53f7Q\u4ee3\u8868\u3002\u4f46Q\u7edd\u5bf9\u4e0d\u8868\u793a\u6709\u7406\u6570\u3002
\u89e3\u9898\u6280\u5de7:
1\u3001\u6709\u7406\u6570\u7684\u52a0\u6cd5\u8fd0\u7b97
\u540c\u53f7\u4e24\u6570\u6765\u76f8\u52a0\uff0c\u7edd\u5bf9\u503c\u52a0\u4e0d\u53d8\u53f7\u3002
\u5f02\u53f7\u76f8\u52a0\u5927\u51cf\u5c0f\uff0c\u5927\u6570\u51b3\u5b9a\u548c\u7b26\u53f7\u3002
\u4e92\u4e3a\u76f8\u53cd\u6570\u6c42\u548c\uff0c\u7ed3\u679c\u662f\u96f6\u987b\u8bb0\u597d\u3002
\u3010\u6ce8\u3011\u201c\u5927\u201d\u51cf\u201c\u5c0f\u201d\u662f\u6307\u7edd\u5bf9\u503c\u7684\u5927\u5c0f\u3002
2\u3001\u6709\u7406\u6570\u7684\u51cf\u6cd5\u8fd0\u7b97
\u51cf\u6b63\u7b49\u4e8e\u52a0\u8d1f\uff0c\u51cf\u8d1f\u7b49\u4e8e\u52a0\u6b63\u3002
\u6709\u7406\u6570\u7684\u4e58\u6cd5\u8fd0\u7b97\u7b26\u53f7\u6cd5\u5219\u3002
\u540c\u53f7\u5f97\u6b63\u5f02\u53f7\u8d1f\uff0c\u4e00\u9879\u4e3a\u96f6\u79ef\u662f\u96f6\u3002
\u53c2\u8003\u8d44\u6599
\u9053\u5ba2\u5df4\u5df4\u6587\u4ef6\u5e93.\u9053\u5ba2\u5df4\u5df4[\u5f15\u7528\u65f6\u95f42017-12-20]

1.(2a+3b)*(2a-b)
2.(2x+y-1)\u7684\u5e73\u65b9

\u89e31.(2a+3b)*(2a-b) \u7528\u5341\u5b57\u76f8\u4e58\u6cd5 \u5427

2 2 =4a2-3b2+4ab

3 -1
2.(2x+y-1)\u7684\u5e73\u65b9 =4x2+y2+4xy +1-4x-2y

\uff083\uff09 2(ab\uff0d3)\uff084\uff09\uff0d3(ab2c+2bc\uff0dc) \uff085\uff09(\u20152a3b) (\u20156ab6c) \uff086\uff09 (2xy2) 3yx


\uff081\uff092ab\uff085ab2+3a2b\uff09 \uff082\uff09


\u4e09\u3001\u5de9\u56fa\u7ec3\u4e60\uff1a

1\u3001\u5224\u65ad\u9898\uff1a

(1) 3a3\u00b75a3=15a3 \uff08 \uff09

(2) ( )

(3) ( )

(3) \uff0dx2(2y2\uff0dxy)=\uff0d2xy2\uff0dx3y ( )

2\u3001\u8ba1\u7b97\u9898\uff1a
(3) (4) \uff0d3x(\uff0dy\uff0dxyz)

(5) 3x2(\uff0dy\uff0dxy2\uff0bx2) (6) 2ab(a2b\uff0d c)

(7) (a+b2+c3)\u00b7\uff08\uff0d2a\uff09 (8) [\uff0d(a2)3+(ab)2+3]\u00b7\uff08ab3\uff09

(9) \uff0810\uff09
(11) \uff08


\u56db\u3001\u5e94\u7528\u9898\uff1a

1\u3001\u6709\u4e00\u4e2a\u957f\u65b9\u5f62\uff0c\u5b83\u7684\u957f\u4e3a3acm\uff0c\u5bbd\u4e3a\uff087a+2b\uff09cm\uff0c\u5219\u5b83\u7684\u9762\u79ef\u4e3a\u591a\u5c11\uff1f

\u4e94\u3001\u63d0\u9ad8\u9898\uff1a

1\uff0e\u8ba1\u7b97\uff1a

\uff081\uff09\uff08 x3\uff092\u20152x3[x3\u2015x\uff082x2\u20151\uff09] \uff082\uff09xn\uff082xn+2\uff0d3xn-1+1\uff09

2\u3001\u5df2\u77e5\u6709\u7406\u6570a\u3001b\u3001c\u6ee1\u8db3 |a\u2015b\u20153|+\uff08b+1\uff092+|c\uff0d1|=0\uff0c

\u6c42\uff08\uff0d3ab\uff09\u00b7\uff08a2c\uff0d6b2c\uff09\u7684\u503c\u3002

3\u3001\u5df2\u77e5\uff1a2x\u00b7\uff08xn+2\uff09=2xn+1\uff0d4\uff0c\u6c42x\u7684\u503c\u3002

4\u3001\u82e5a3\uff083an\uff0d2am+4ak\uff09=3a9\uff0d2a6+4a4\uff0c\u6c42\uff0d3k2\uff08n3mk+2km2\uff09\u7684\u503c\u3002

(0.5+x)+x=9.8÷22(X+X+0.5)=9.83X+5X=4814X-8X=126*5+2X=4420X-50=5028+6X=8832-22X=1024-3X=310X*（5+1）=6099X=100-XX+3=18X-6=1256-2X=204y+2=6x+32=763x+6=1816+8x=402x-8=84x-3*9=298x-3x=105x-6*5=42x+5=72x+3=1012x-9x=96x+18=4856x-50x=305x=1578-5x=2832y-29=35x+5=1589x-9=80100-20x=2055x-25x=6076y-75=123y-23=234x-20=080y+20=10053x-90=162x+9x=1112y-12=2480+5x=1007x-8=665x+35=10019y+y=4025-5x=1579y+y=8042x+28x=1403x-1=890y-90=9080y-90=7078y+2y=16088-x=809-4x=120x=4065y-30=10051y-y=10085y+1=-8645x-50=40

初一有理数六十道计算题的题目。

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