初一100道数学计算题及答案.doc

×(8+10) 
=×8+×10
=10+= 
9123-(123+) 
=9123-123-
=9000-
= 
×+× 
=×(+)
=×3= 
9999×1001 
=9999×(1000+1)
=9999×1000+9999×1 
=10008999 
×-×+× 
=(-)×+×
=×+× 
×(+) 
=×10 
=83 
++ 
=(+)+ 
=10+ 
= 
933-157-43 
=933-(157+43)
=933-200
=733 
4821-998 
=4821-1000+2
=3823 
I32×125×25 
=4×8×125×25 
=(4×25)×(8×125)
=100×1000 
=100000
9048÷268 
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷269 
=100+100+100+48
=348
2881÷ 43 
=(1290+1591)÷ 434
=1290÷43+1591÷43
=30+37
××-××16
=××-××
=×(×-×)
=×(4××-×4×)
=×(4××2×-×4×)
=×(-)
=×[4××(-)]
=×[4××] 
=×(4×)
=4237 
+18÷-× 
=+12-
=-
=
×8+×8-47 
=52+28-47
=80-47
(80-)×5分之2- 
=-
=-
=
8×7分之4÷[1÷(-)]
=8×4/7÷[1÷]
=8×4/7÷4
=8/7
2700×(506-499)÷900 
=2700×7÷900 
=18900÷900 
=21 
-(-)÷
=-÷
=- 
=10
(1÷1-1)÷ 
=(1-1)÷ 
=0÷ 
=0
+(3-÷)×1
=+×1 
=+ 
=
[-18]+29+[-52]+60= 19 
[-3]+[-2]+[-1]+0+1+2= -3 
[-301]+125+301+[-75]= 50 
[-1]+[-1/2]+3/4+[-1/4]= -1 
[-7/2]+5/6+[-]+4/5+19/6=  
[-]+[-]++= -8 
+[-17/5]+[-1/8]+[-]= -3 
[-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 
-(-3/4+-4-3/4) 
1/2+3+5/6-7/12 
[2/3-4-1/4*(-)]/1/3+2 
22+(-4)+(-2)+4*3 
-2*8-8*1/2+8/1/8 
(2/3+1/2)/(-1/12)*(-12) 
(-28)/(-6+4)+(-1) 
2/(-2)+0/7-(-8)*(-2) 
(1/4-5/6+1/3+2/3)/1/2 
18-6/(-3)*(-2) 
(5+3/8*8/30/(-2)-3 
(-84)/2*(-3)/(-6) 
1/2*(-4/15)/2/3 
-3x+2y-5x-7y
1437×27+27×563 〔75-(12+18)〕÷15 
2160÷〔(83-79)×18〕 280+840÷24×5 
325÷13×(26