小学六年级数学总复习计算题专项练习Word格式.doc
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24×
(-)÷
4.85×
0.17+0.485×
8.3
×
[-(-)] +×
99+
2008×
2-2.86×
(6.25-6)
4÷
1+6×
(0.86+0.86+0.86+0.86)×
25
7.6×
÷
[1.9-1.9×
(1.9-1.9)]125÷
(50÷
8)
9999×
7+1111×
37(70+)×
1-1÷
2-1÷
3-19.98×
37-199.8×
1.9+1998×
0.82
231÷
2318.89×
36+8.89×
63+8.89
2007×
216×
(-
二、求未知数。
112.6+X=277.9X+193=978
X÷
2.7=7X÷
22.2=2
X-123=456X-12.3=4.56
5X=6.514X=1.12
1-=4-7×
1.3=9.9
:
28%=:
0.7=:
4×
(x-0.8)=8χ+χ-6=
=30%χ-0.8χ-6=16
∶χ=∶2X+X=45
X:
(2+5)=10.5:
4 6(-3.5)=17.8+2