急求有理数加减乘除乘方混合运算200道 100道简单一点 100道难一点

3 2^2*(-1/5) 解:原式=3 4*(-1/5) =3-4/5 =11/5 18-6÷(-2)*(-1/3) 解:原式=18-(-3)*(-1/3) =18-1 =17 (-3)^2*[-2/3 (-5/9)] 解:原式=9*(-11/9) =-11 8 (-3)^2*(-2) 解:原式=8 9*(-2) =8-18 =-10 100÷(-2)^2-(-2)÷(-2/3) 解:原式=100÷4-3 =25-3 =22 36*(1/2-

1. 2100-21*53+2255 2. (103-336÷21)*15 3. 800-(2000-9600÷8) 4. 40*48-(1472+328)÷5 5. (488+344)÷(202-194) 6. 2940÷28+136*7 7. 605*(500-494)-1898 8. (2886+6618)÷(400-346) 9. 9125-(182+35*22) 10. (154-76)*(38+49) 11. 3800-136*9-

(-9)-(-13)+(-20)+(-2) 3+13-(-7)/6 (-2)-8-14-13 (-7)*(-1)/7+8 (-11)*4-(-18)/18 4+(-11)-1/(-3) (-17)-6-16/(-18) 5/7+(-1)-(-8) (-1)*(-1)+15+1 3-(-5)*3/(-15) 6*(-14)-(-14)+(-13) (-15)*(-13)-(-17)-

100道有理数加减乘除混合运算数学题1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 * 49/9 - 4/3 5. 8/9 * 15/36 + 1/27 6. 12* 5/6 2/9 *3 7. 8* 5/4 + 1/4 8. 6÷ 3/8 3/8 ÷6 9. 4/7 * 5/9 + 3/7 * 5/9 10. 5/2 -( 3/2 + 4/5 )

[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 5+21*8/2-6-59 68/21-8-11*8+61 -2/9-7/9-56 4.6-(-3/4+1.6-4-3/4) 1/2+3+5/6-7/12 [2/3-4-1/4*(-0.4)]/1/3+2 22+(-4)+(-2)+4*3 -2*8-8*1/2

-57+23-7205*2*56*3.145

1-1/3[x-(1+x)/3]=x/2-1/2[2x-(10-7x)/3] 1-1/3[x-1/3+x/3]=x/2-1/2[2x-10/3+7x/3] 1-1/3[4x/3-1/3]=x/2-1/2[13x/3-10/3] 1-4x/9-1/9=x/2-13x/6+10/6 4x/9-x/2+13/6=10/6-4-1/9 8x/18-9x/18+39x/18=30/18-18/18-2/18 38x/18=18/10 x=10/18÷38/18 x=10/18*18/38

2.11 有理数的混合运算课时训练 1,计算 -3-3( - )的结果是 ( ) A. B.-2 C.-4 D.-1 2,计算 *5÷ *5的结果是 ( ) A.1 B.5 C.25 D. 3,计算1-2 *(-3)得 ( ) A.-27 B.-23 C.21 D.25 4,下列各式运算结果为正数的是 ( ) A.-2 *5 B.(1-2) *5 C.(1-2 )*

1) (-9)-(-13)+(-20)+(-2) (2) 3+13-(-7)/6 (3) (-2)-8-14-13 (4) (-7)*(-1)/7+8 (5) (-11)*4-(-18)/18 (6) 4+(-11)-1/(-3) (7) (-17)-6-16/(-18) (8) 5/7+(-1)-(-8) (9) (-1)*(-1)+15+1 (10) 3-(-5)*3/(-15) (11) 6*(-14)-(-14)+(-13) (12) (-15)*(-13)-(-17)-(-4) (13) (-20)/13/(-7)+

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