六年级数学计算题训练
计算下面各题:
(1–×)÷ ÷×7 25÷(–) +–
–(+) ×– (–)÷(+) ×[÷(+)]
12÷(1–) [(1–×)÷ [(1–)×]÷4
用简便方法计算:
(–)×70 97× ×8+×2 15×+15×
(+–)×72 72×(–+) (+)×9+ 30×(–+)
4–÷– 48×(–+) (+)×60–27
÷9+× 24×(+) 5––
×(9+)– ÷+× 5––
+÷+ 2–×– +÷+
30×(+–) 10÷10+24÷12 ×+5.2×+1÷
直接写出得数。
2.4÷0.125= 555×13-111×15= 25×0.32×0.25=
125-25+75= 999×15= 10-3.25+9÷0.3= 43.2÷0.125=
55×(-)= ×2005= 10-(4+3)-0.75=
解方程:12×(–+) +×+
+X = 2X– = X+ =
3X–1.4×2=1.1 X+–= 5.5x–3x = 1.75
X = 15× X×(+)= (1–)X =
X×(1+)= 25 X× = 15÷X =
X×× = 10 X× = 8× X×× = 18
X× = 24× X×× = 4 X× = 18×
= 10 7X–4X = 21 ×x+×45 = 12
X+x = 20 51-4.5=(51-10X)×3 3X-2×(10-X)=15
(1-X)÷3=2-X X÷25+X÷5=X-19
简便计算:
25×37×0.4 75×0.39×4
125×39×16 41×35×2
101×99-897 136×4.06+4.06×64
7.02×123+877×7.02 102×5.6-5.6×2
471×0.25-0.25×71 43×126-86×13
×+÷
解方程:
χ ÷5 = ÷χ = X – 60% X =18 χ =
X + 2.5×8=95 40%X+30=80 4χ+ χ= 9 χ-=
计算:
3-- ×+× χ= χ×(+)=
25×÷× 13.09-8.12-4.88 12×103-4500÷75
×[÷(×)] (+)×15×11 37.5+19.5÷2.5×4
解方程:
x-=×30% 6:x=: ×x+×45 = 12 X×× = 4
计算:
[1–(+)]÷ –×÷3 (1–×)÷
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