2026年通城学典计算能手六年级数学下册苏教版江苏专版第47页答案
一、口算。
$0.3 + 37\% =$
0.67
$\frac{7}{68}÷\frac{7}{18} =$
$\dfrac{9}{34}$
$1 - (\frac{9}{14} - \frac{5}{14}) =$
$\dfrac{5}{7}$

$10÷50\% =$
20
$\frac{1}{3} + \frac{40}{9} =$
$\dfrac{43}{9}$
$3 - 0.25 - 0.75 =$
2

$0.35×6 =$
2.1
$0.236÷2 =$
0.118
$24×(3.2 - 1.2) =$
48

$0.6×\frac{10}{3} =$
2
$\frac{7}{10} + 30\% =$
1
$\frac{2}{5} - \frac{2}{5}×\frac{1}{2} =$
$\dfrac{1}{5}$

$\frac{5}{6}÷\frac{2}{3} =$
$\dfrac{5}{4}$
$\frac{5}{14} - \frac{2}{7} =$
$\dfrac{1}{14}$
$(37.5\% - \frac{3}{8})×\frac{3}{4} =$
0

$2 - 51\% =$
1.49
$\frac{3}{8}×\frac{2}{3} =$
$\dfrac{1}{4}$
$2.5×(1÷5) =$
0.5

$1.68 + 3.75 =$
5.43
$21÷\frac{7}{12} =$
36
$3.72÷1.25÷0.8 =$
3.72

答案

一、0.67 $\dfrac{9}{34}$ $\dfrac{5}{7}$
20 $\dfrac{43}{9}$ 2
2.1 0.118 48
2 1 $\dfrac{1}{5}$
$\dfrac{5}{4}$ $\dfrac{1}{14}$ 0
1.49 $\dfrac{1}{4}$ 0.5
5.43 36 3.72
二、解比例。
$\frac{6}{x} = \frac{5}{6}:\frac{1}{3}$ $0.25:75 = 0.8:x$ $7.5:x = 24:12$
$\frac{x}{0.9} = \frac{0.7}{0.8}$ $1.2:\frac{1}{2} = x:4$ $5:8 = (x + 1):40$

答案

二、$x=\dfrac{12}{5}$ $x=240$ $x=3.75$
$x=\dfrac{63}{80}$ $x=9.6$ $x=24$