六年级上册计算题及答案.doc
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一、解方程
X –15%X = 68 6:x= EQ \F(3,7) : EQ \F(1,3) χ+60%χ=28 1.6∶χ=0.125∶0.5
X =80 X = 14/3 X = 30 X = 6.4
χ: 0.75=56 2χ+30%χ=9.2 χ-4×= 7X÷0.5= EQ \F(3,5)
X = 42 X = 4 X = 43/15 X = 3/70
:=:χ χ+x=42 χ:12= EQ \F(3,4) : EQ \F(2,5) 4X+0.8×6=15.2
X = 3/2 X = 36 X =45/2 X =2.6
二、脱式计算:
÷[(+)×] (+)×30 +3÷ ()
=7/10 =49 =19/3 =1/5
=5/9 =1/3 =20 =0
29÷× 9.3÷4-6.7×0.25? 32.6-(6.6+0.125÷12.5%)
=29 =0.65 =25
(32×+17)÷ (25+)÷+ ×+×+ (-)×(24-)
=60 =103.25 =9/8 =29/15
(×+)÷ ÷[(+)×] 3-- ×+×
=12/7 =3 =2 =5/7
×+÷ 18×(+) ×-÷ 2008× EQ \F(2006,2007)
=1/3 =23 =1/2 = 2006 EQ \F(2006,2007)
EQ \F(11,13) - EQ \F(11,13) × EQ \F(13,33) ( +-)×12 EQ \F(2,3) +( EQ \F(4,7) + EQ \F(1,2) )× EQ \F(7,25) ×101-
=20/39 =11 =29/30 =28
25 eq \f(3,8) ×8 eq \f(2,27) ×(15× eq \f(27,28) )× eq \f(2,15) eq \f(3,8) + eq \f(3,8) × eq \f(4,7) + eq \f(3,8) × eq \f(3,
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