2025年通城学典计算能手六年级数学上册苏教版江苏专版第84页答案
一、口算。
$60\% +0.44=$
1.04

$20÷20\% =$
100

$60\% ÷\frac {6}{13}=$
$\frac{13}{10}$

$\frac {3}{5}+80\% =$
$\frac{7}{5}$

$30\% +75\% =$
1.05

$150\% -\frac {7}{8}=$
0.625

$8.2÷82\% =$
10

$32\% ×3=$
0.96

$40\% ×\frac {5}{6}=$
$\frac{1}{3}$

$\frac {3}{5}+\frac {3}{8}=$
$\frac{39}{40}$

$\frac {8}{9}×72\% =$
0.64

$48\% ×1.5=$
0.72

$50×20\% =$
10

$3.02-0.26=$
2.76

$645\% +3.55=$
10

$10÷\frac {4}{9}=$
$\frac{45}{2}$

$\frac {13}{4}×40\% =$
$\frac{13}{10}$

$8.5×20\% =$
1.7

$70\% +0.3=$
1

$7.4÷37\% =$
20

$28\% ×\frac {5}{2}=$
0.7

答案

一、1.04 100 $\frac{13}{10}$ $\frac{7}{5}$ 1.05 0.625 10 0.96 $\frac{1}{3}$ $\frac{39}{40}$ 0.64 0.72 10 2.76 10 $\frac{45}{2}$ $\frac{13}{10}$ 1.7 1 20 0.7
二、计算下面各题。
$42.6+58.4×20\% $
$100-98.6×40\% $
$(145.5-34.2)×(1-20\% )$
$(\frac {7}{12}-\frac {1}{9}+\frac {1}{4})×54\% $
$36\% ×39+6.1×\frac {18}{5}$
$\frac {9}{2}×80\% ÷4.5÷\frac {4}{5}$

答案

二、54.28 60.56 89.04 $\frac{39}{100}$ 36 1

解析

$42.6+58.4×20\%$
$=42.6+58.4×0.2$
$=42.6+11.68$
$=54.28$
$100-98.6×40\%$
$=100-98.6×0.4$
$=100-39.44$
$=60.56$
$(145.5-34.2)×(1-20\%)$
$=111.3×0.8$
$=89.04$
$(\frac {7}{12}-\frac {1}{9}+\frac {1}{4})×54\%$
$=(\frac {21}{36}-\frac {4}{36}+\frac {9}{36})×0.54$
$=\frac {26}{36}×0.54$
$=\frac {13}{18}×\frac {27}{50}$
$=\frac {39}{100}$
$36\% ×39+6.1×\frac {18}{5}$
$=0.36×39+6.1×3.6$
$=3.6×3.9+6.1×3.6$
$=3.6×(3.9+6.1)$
$=3.6×10$
$=36$
$\frac {9}{2}×80\% ÷4.5÷\frac {4}{5}$
$=4.5×0.8÷4.5÷0.8$
$=(4.5÷4.5)×(0.8÷0.8)$
$=1×1$
$=1$