《2025年跳跳熊预习日日清六年级数学下册人教版》

一、口算下面各题。
$\frac{5}{9} \times \frac{3}{5} =$     $3 - 1\frac{1}{5} =$     $\frac{3}{5} \div 3 =$     $\frac{7}{20} + 0.65 =$
$42 \div \frac{6}{7} =$     $\frac{1}{2} + \frac{1}{2} =$     $\frac{11}{12} - \frac{5}{12} =$     $1\frac{1}{9} \times 3 =$
$\frac{8}{15} \div \frac{4}{5} =$     $\frac{1}{2} - 0.2 =$     $17 \div 1\frac{7}{10} =$     $\frac{1}{9} \div \frac{1}{4} =$
$\frac{1}{9} \times 9 \times \frac{1}{3} =$     $\frac{5}{6} \div 20 =$     $5 \times \frac{1}{5} - \frac{1}{5} \div 4 =$
$\frac{1}{3} \times 9 \times \frac{1}{3} =$     $\frac{7}{12} \times 0 + \frac{1}{9} =$     $\frac{1}{4} + 4 \div \frac{1}{4} + 4 =$
$\frac{2}{3} \div \frac{7}{9} \times \frac{2}{3} =$     $\frac{15}{69} \times 1\frac{4}{5} \times 0 =$     $0.125 \times \frac{1}{6} \times 8 =$
$1 - \frac{7}{9} \div \frac{7}{8} =$     $\frac{5}{9} \times 9 + \frac{5}{9} \times 9 =$     $\frac{3}{8} \times \frac{5}{9} + \frac{5}{9} \times \frac{5}{8} =$
$2 + 98\% =$     $100 \times 1.9\% =$     $1 \div 10\% \times 1 \div 10\% =$
$8.3 + 2.7 =$     $0 \div 3.9 \times 150 =$     $\frac{1}{3} \times \frac{1}{3} \div \frac{1}{3} \times \frac{1}{3} =$
$15 \div 15\% =$     $9.4 \times 0.25 \times 8 =$     $1.4 \div 0.7 \times 30 =$
$7.2 \div 8 \times 6 =$     $86.86 \div 0.86 =$     $2.09 - 0.55 - 1.45 =$
$0.1 \div 0.01 =$     $0.8 \div (1 - 0.99) =$     $1.43 + 2.95 - 1.43 =$
$8.2 \times 0 \div 16 =$     $6 \times 19 + 14 \times 19 =$     $22 \times 0.25 \times 0.4 =$
$13 \div 20 =\frac{(\ \ \ \ )}{(\ \ \ \ )}=(\ \ \ \ ):(\ \ \ \ )=(\ \ \ \ )\%$
$6:(\ \ \ \ )=(\ \ \ \ ) \div 4 =\frac{(\ \ \ \ )}{20}=(\ \ \ \ )\% =$七五折

答案： $\frac{1}{3}$ $1\frac{4}{5}$ $\frac{1}{5}$ 1 49 1 $\frac{1}{2}$ $\frac{10}{3}$ $\frac{2}{3}$ $\frac{3}{10}$ 10 $\frac{4}{9}$ $\frac{1}{3}$ $\frac{1}{24}$ $\frac{19}{20}$ 1 $\frac{1}{9}$ $20\frac{1}{4}$ $\frac{4}{7}$ 0 $\frac{1}{6}$ $\frac{1}{9}$ 10 $\frac{5}{9}$ 2.98 1.9 100 11 0 $\frac{1}{9}$ 100 18.8 60 5.4 101 0.09 10 80 2.95 0 380 2.2 $\frac{13}{20}$ 13 20 65 8 3 15 75