初一数学实数计算题附答案

1、- 33120135 - 3 =( )( )实数计算题练习116 +149=2- 52-42=3.(-3)(-27)=4.1 -925=5.6.1 10.09 + 0.25 =3 50.81 - 0.01 =7.8.31 1 64 2 19-1 =272=9.3-0.001 3 125 3(-2)=10.- 36 + 214+3 27 =11.16 -3 3 1 -1927=12.3(-2)3+2 2-3169512-1 =13.3 3 -323 +2 3 =14.12+(-1)+ - 5 =415.6 3 +2 3 -4 3 =16.5 -( )17.2 3 -3 2 - 3 3 -2 2

2、=12)3100018.3 -2 - 3 =19.20.3 125 - 36 +2 1445 +3 5 -6 5 =21.3216 +3-1000 + 2 - = 3 22.(-5)2-2-2 -3-27 =23.39 10.216 - 1 +5 =16 100243-1 +(364 -4 62=25.-3(-5)279+(-1)=26.16 +341240.027 -3 1 - =12527.121 - 1214+ 20.25 -3102 =2728.1.44 + n0=29.132 -52 32 +4 2 =30.3(-4)3 -122-327 =31.-3 +(-1)2013(2014

3、)0-327 =32.33.34.323 1 8 + 3 -1 - 2 - 2014 - = 2 1 4 + 144 -3 1000 = 21 63-27 - 0 - +3 1 - =16 64222 - 3 + 2 - 3 =2335.361 71 + -3 -1 +3 64 8-4318 =36.2 3 +3 2 -5 3 -3 2 +3 -2 + 3 -1 =37.5 2 125 5 - + 0.64 3 5 8(-2)=38.2 - 3 +( )2 ( )3339.(-3)2+42+5 5 2- 4 = 3 2 340.6 - 3 + 3 -1 +3 - 3 =41.42.31 10

4、- -3 -2 - +38 272x-16 =3-343 -3-27 +(-1)=(2x-1)3-125=0 43.44.4 (x-1)2-9=045.x -4 = 5 -146.(1+2x)3-6164=147.(2x+0.1)=351248.3 x -5 =249.2 x3-6 =3450.2 (x2+1)=1051.x2- 4 =32252.(x-0.7 )3=0.02753.2 x3-54 =054.x3+1 =-982755.2 (x-1)2=983实数计算题答案：1.4172.-33. 9 4.455. 0.2 6. 0.8 7. 2 8.-239. 1 10.-3211. 2 12.-112413.7 3214.- 515.4 316.317.- 3 - 218.219. 2320.-2 521.-31322.6 + 223.-0.1524. -125. 426.23527.32328. 2.229.12530. -731. -132.2 + 333. -134. -335.41436.1 -3 337. 738.3 - 239.5 + 540.2 + 6 - 341.-21642.x =543.x =344.x =212,x =-1245.x =3 + 5 , x =5 - 546.x =1847.x =1