《2025年口算基础训练六年级数学上册人教版》

简便计算
(1)$34× \frac{1}{2}× \frac{10}{17}$
(7)$\frac{8}{15}-\frac{8}{15}× \frac{3}{8}$
(2)$32× (\frac{3}{4}+\frac{5}{8})$
(8)$\frac{3}{7}× \frac{4}{7}× 21$
(3)$\frac{8}{9}× \frac{2}{3}+\frac{8}{9}× \frac{1}{3}$
(9)$\frac{6}{7}× 101-\frac{6}{7}$
(4)$3.6× (\frac{5}{9}+\frac{1}{6})$
(10)$(14+\frac{6}{7})× \frac{1}{14}$
(5)$\frac{4}{9}× 10-\frac{4}{9}$
(11)$\frac{5}{7}× 1.4× \frac{5}{14}$
(6)$24× (\frac{3}{4}-\frac{5}{8})$
(12)$\frac{13}{22}× \frac{11}{23}× \frac{23}{26}$

答案：
(1) $34×\frac{1}{2}×\frac{10}{17}$
$=34×\frac{10}{17}×\frac{1}{2}$
$=20×\frac{1}{2}$
$=10$
(2) $32×(\frac{3}{4}+\frac{5}{8})$
$=32×\frac{3}{4}+32×\frac{5}{8}$
$=24 + 20$
$=44$
(3) $\frac{8}{9}×\frac{2}{3}+\frac{8}{9}×\frac{1}{3}$
$=\frac{8}{9}×(\frac{2}{3}+\frac{1}{3})$
$=\frac{8}{9}×1$
$=\frac{8}{9}$
(4) $3.6×(\frac{5}{9}+\frac{1}{6})$
$=3.6×\frac{5}{9}+3.6×\frac{1}{6}$
$=2 + 0.6$
$=2.6$
(5) $\frac{4}{9}×10 - \frac{4}{9}$
$=\frac{4}{9}×(10 - 1)$
$=\frac{4}{9}×9$
$=4$
(6) $24×(\frac{3}{4}-\frac{5}{8})$
$=24×\frac{3}{4}-24×\frac{5}{8}$
$=18 - 15$
$=3$
(7) $\frac{8}{15}-\frac{8}{15}×\frac{3}{8}$
$=\frac{8}{15}×(1 - \frac{3}{8})$
$=\frac{8}{15}×\frac{5}{8}$
$=\frac{1}{3}$
(8) $\frac{3}{7}×\frac{4}{7}×21$
$=\frac{3}{7}×21×\frac{4}{7}$
$=9×\frac{4}{7}$
$=\frac{36}{7}$
(9) $\frac{6}{7}×101 - \frac{6}{7}$
$=\frac{6}{7}×(101 - 1)$
$=\frac{6}{7}×100$
$=\frac{600}{7}$
(10) $(14 + \frac{6}{7})×\frac{1}{14}$
$=14×\frac{1}{14}+\frac{6}{7}×\frac{1}{14}$
$=1 + \frac{3}{49}$
$=1\frac{3}{49}$
(11) $\frac{5}{7}×1.4×\frac{5}{14}$
$=\frac{5}{7}×\frac{7}{5}×\frac{5}{14}$
$=1×\frac{5}{14}$
$=\frac{5}{14}$
(12) $\frac{13}{22}×\frac{11}{23}×\frac{23}{26}$
$=\frac{13}{22}×(\frac{11}{23}×\frac{23}{26})$
$=\frac{13}{22}×\frac{11}{26}$
$=\frac{1}{4}$