《2025年速算天地数学口算心算六年级上册苏教版》

速算 1
$\frac{2}{19}×3= $$\frac{6}{19}$
$\frac{4}{15}×4= $$\frac{16}{15}$
$\frac{7}{18}×1= $$\frac{7}{18}$
$\frac{2}{7}×2= $$\frac{4}{7}$
$\frac{3}{4}×8= $6
$\frac{2}{3}×3= $2
$\frac{2}{11}×4= $$\frac{8}{11}$
$\frac{3}{14}×7= $$\frac{3}{2}$
$\frac{2}{5}×10= $4
$\frac{1}{6}×2= $$\frac{1}{3}$
$6×\frac{2}{3}= $4
$5×\frac{2}{7}= $$\frac{10}{7}$
$\frac{7}{8}×2= $$\frac{7}{4}$
$\frac{3}{4}×4= $3
$\frac{3}{4}×3= $$\frac{9}{4}$
$\frac{2}{9}×3= $$\frac{2}{3}$
$\frac{4}{15}×5= $$\frac{4}{3}$
$9×\frac{2}{3}= $6
$\frac{5}{24}×12= $$\frac{5}{2}$
$\frac{11}{96}×48= $$\frac{11}{2}$

答案： 解析：本题考查分数的速算，即分数与整数相乘的运算。直接进行乘法运算即可得出结果。
答案：
$\frac{2}{19} × 3 = \frac{6}{19}$
$\frac{4}{15} × 4 = \frac{16}{15}$
$\frac{7}{18} × 1 = \frac{7}{18}$
$\frac{2}{7} × 2 = \frac{4}{7}$
$\frac{3}{4} × 8 = 6$
$\frac{2}{3} × 3 = 2$
$\frac{2}{11} × 4 = \frac{8}{11}$
$\frac{3}{14} × 7 = \frac{3}{2}$
$\frac{2}{5} × 10 = 4$
$\frac{1}{6} × 2 = \frac{1}{3}$
$6 × \frac{2}{3} = 4$
$5 × \frac{2}{7} = \frac{10}{7}$
$\frac{7}{8} × 2 = \frac{7}{4}$
$\frac{3}{4} × 4 = 3$
$\frac{3}{4} × 3 = \frac{9}{4}$
$\frac{2}{9} × 3 = \frac{2}{3}$
$\frac{4}{15} × 5 = \frac{4}{3}$
$9 × \frac{2}{3} = 6$
$\frac{5}{24} × 12 = \frac{5}{2}$
$\frac{11}{96} × 48 = \frac{11}{2}$