2025年口算天天练山东画报出版社六年级数学下册人教版
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口算。
$\frac{1}{2} - \frac{1}{5} =$
$\frac{1}{3} × \frac{15}{2} =$
$4.5:1.5 =$
$7.2 ÷ 8 =$
$\frac{3}{4} × \frac{8}{7} =$
$\frac{3}{4}:\frac{5}{6} =$
$\frac{4}{7} × \frac{3}{4} =$
$\frac{3}{8} - 0.125 =$
$12:14 =$
$4.03 - 2.3 =$
$\frac{1}{5} ÷ \frac{10}{3} =$
$\frac{2}{5}$吨:200千克=
$\frac{5}{9} × \frac{37}{35} =$
$36 ÷ \frac{4}{9} =$
$3.14 × 8 =$
$40 ÷ \frac{5}{8} =$
$0.25 × \frac{1}{4} =$
$\frac{1}{3} × 3.14 × 3^2 =$
$\frac{5}{6} + \frac{2}{3} =$
$36 ÷ \frac{9}{7} =$
$\frac{5}{7} + \frac{9}{8} × \frac{5}{9} + \frac{3}{8} =$
$18 ÷ \frac{3}{2} =$
$\frac{4}{5} ÷ \frac{2}{5} =$
$125 × 8.8 =$
$\frac{3}{4} ÷ \frac{7}{2} =$
$\frac{9}{7} ÷ \frac{6}{7} =$
$2 ÷ 14 + \frac{6}{7} =$
$\frac{1}{2} - \frac{1}{5} =$
$\frac{1}{3} × \frac{15}{2} =$
$4.5:1.5 =$
$7.2 ÷ 8 =$
$\frac{3}{4} × \frac{8}{7} =$
$\frac{3}{4}:\frac{5}{6} =$
$\frac{4}{7} × \frac{3}{4} =$
$\frac{3}{8} - 0.125 =$
$12:14 =$
$4.03 - 2.3 =$
$\frac{1}{5} ÷ \frac{10}{3} =$
$\frac{2}{5}$吨:200千克=
$\frac{5}{9} × \frac{37}{35} =$
$36 ÷ \frac{4}{9} =$
$3.14 × 8 =$
$40 ÷ \frac{5}{8} =$
$0.25 × \frac{1}{4} =$
$\frac{1}{3} × 3.14 × 3^2 =$
$\frac{5}{6} + \frac{2}{3} =$
$36 ÷ \frac{9}{7} =$
$\frac{5}{7} + \frac{9}{8} × \frac{5}{9} + \frac{3}{8} =$
$18 ÷ \frac{3}{2} =$
$\frac{4}{5} ÷ \frac{2}{5} =$
$125 × 8.8 =$
$\frac{3}{4} ÷ \frac{7}{2} =$
$\frac{9}{7} ÷ \frac{6}{7} =$
$2 ÷ 14 + \frac{6}{7} =$
答案:
$\frac{3}{10}$
$\frac{5}{2}$
$3$
$0.9$
$\frac{6}{7}$
$\frac{9}{10}$
$\frac{3}{7}$
$\frac{1}{4}$
$6:7$
$1.73$
$\frac{3}{50}$
$2$
$\frac{37}{63}$
$81$
$25.12$
$64$
$\frac{1}{16}$
$9.42$
$\frac{3}{2}$
$28$
$\frac{12}{7}$
$12$
$2$
$1100$
$\frac{3}{14}$
$\frac{3}{2}$
$1$
$\frac{5}{2}$
$3$
$0.9$
$\frac{6}{7}$
$\frac{9}{10}$
$\frac{3}{7}$
$\frac{1}{4}$
$6:7$
$1.73$
$\frac{3}{50}$
$2$
$\frac{37}{63}$
$81$
$25.12$
$64$
$\frac{1}{16}$
$9.42$
$\frac{3}{2}$
$28$
$\frac{12}{7}$
$12$
$2$
$1100$
$\frac{3}{14}$
$\frac{3}{2}$
$1$
解决问题。
把一个长4厘米、宽3厘米的长方形按$3:1$放大,得到图形的面积是多少平方厘米?
把一个长4厘米、宽3厘米的长方形按$3:1$放大,得到图形的面积是多少平方厘米?
答案:
放大后长:$4 × 3 = 12$厘米,放大后宽:$3 × 3 = 9$厘米,面积:$12 × 9 = 108$平方厘米
答:得到图形的面积是108平方厘米。
答:得到图形的面积是108平方厘米。
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