# 算数演習/小学校5年生

ナビゲーションに移動 検索に移動

## 小数のしくみ

(1)

${\displaystyle 4.5\times 10}$

(2)

${\displaystyle 0.86\times 10}$

(3)

${\displaystyle 0.071\times 10}$

(4)

${\displaystyle 3.06\times 100}$

(5)

${\displaystyle 0.094\times 100}$

(6)

${\displaystyle 90.2\div 10}$

(7)

${\displaystyle 1.75\div 10}$

(8)

${\displaystyle 0.87\div 10}$

(9)

${\displaystyle 0.3\div 100}$

(10)

${\displaystyle 590\div 100}$

## 小数のかけ算(2)

(1)

${\displaystyle 4\times 0.2}$

(2)

${\displaystyle 30\times 0.6}$

(3)

${\displaystyle 70\times 0.7}$

(4)

${\displaystyle 400\times 0.5}$

(5)

${\displaystyle 63\times 1.3}$

(6)

${\displaystyle 39\times 8.7}$

(7)

${\displaystyle 24\times 1.5}$

(8)

${\displaystyle 45\times 7.2}$

(9)

${\displaystyle 1.4\times 5.1}$

(10)

${\displaystyle 2.7\times 6.9}$

(11)

${\displaystyle 3.8\times 0.9}$

(12)

${\displaystyle 1.8\times 0.7}$

(13)

${\displaystyle 3.4\times 4.5}$

(14)

${\displaystyle 3.5\times 3.2}$

(15)

${\displaystyle 0.6\times 8.5}$

(16)

${\displaystyle 3.5\times 0.8}$

(17)

${\displaystyle 0.9\times 0.3}$

(18)

${\displaystyle 0.2\times 4.5}$

(19)

${\displaystyle 2.5\times 1.6}$

(20)

${\displaystyle 12.5\times 0.8}$

## 小数のわり算(2)

(1)

${\displaystyle 2\div 0.4}$

(2)

${\displaystyle 9\div 0.3}$

(3)

${\displaystyle 10\div 0.2}$

(4)

${\displaystyle 2.4\div 1.2}$

(5)

${\displaystyle 14.4\div 1.8}$

(6)

${\displaystyle 58.4\div 7.3}$

(7)

${\displaystyle 280\div 3.5}$

(8)

${\displaystyle 30\div 1.5}$

(9)

${\displaystyle 2.8\div 3.5}$

(10)

${\displaystyle 2.2\div 5.5}$

(11)

${\displaystyle 1.8\div 2.4}$

(12)

${\displaystyle 6.9\div 2.5}$

(13)

${\displaystyle 8\div 2.5}$

(14)

${\displaystyle 6\div 2.4}$

(15)

${\displaystyle 7.8\div 6.5}$

(16)

${\displaystyle 2.5\div 0.7}$　(商を${\displaystyle {\frac {1}{10}}}$の位まで求め，余りをだしましょう。)

(17)

${\displaystyle 4.9\div 2.3}$　(商を${\displaystyle {\frac {1}{10}}}$の位まで求め，余りをだしましょう。)

(18)

${\displaystyle 17.5\div 9.6}$　(商を${\displaystyle {\frac {1}{10}}}$の位まで求め，余りをだしましょう。)

(19)

${\displaystyle 7.2\div 2.9}$　(商を四(しゃ)五入で${\displaystyle {\frac {1}{10}}}$の位までの(がい)数で表しましょう。)

(20)

${\displaystyle 2.6\div 1.5}$　(商を四捨五入で${\displaystyle {\frac {1}{10}}}$の位までの概数で表しましょう。)

## 分数のたし算・ひき算

1.次の計算をしましょう。

(1)

${\displaystyle {\frac {3}{5}}+{\frac {4}{5}}}$

(2)

${\displaystyle {\frac {2}{7}}+{\frac {4}{7}}}$

(3)

${\displaystyle {\frac {3}{8}}+{\frac {1}{8}}}$

(4)

${\displaystyle {\frac {4}{9}}+{\frac {7}{9}}}$

(5)

${\displaystyle {\frac {5}{6}}+{\frac {1}{6}}}$

(6)

${\displaystyle {\frac {7}{5}}-{\frac {4}{5}}}$

(7)

${\displaystyle {\frac {5}{7}}-{\frac {3}{7}}}$

(8)

${\displaystyle {\frac {7}{9}}-{\frac {4}{9}}}$

(9)

${\displaystyle {\frac {7}{6}}-{\frac {3}{6}}}$

(10)

${\displaystyle 1-{\frac {3}{8}}}$

2.次の計算をしましょう。

(1)

${\displaystyle {\frac {1}{2}}+{\frac {1}{4}}}$

(2)

${\displaystyle {\frac {1}{2}}+{\frac {2}{5}}}$

(3)

${\displaystyle {\frac {3}{7}}+{\frac {1}{3}}}$

(4)

${\displaystyle {\frac {3}{4}}+{\frac {5}{6}}}$

(5)

${\displaystyle {\frac {1}{3}}+{\frac {2}{5}}}$

(6)

${\displaystyle {\frac {2}{3}}+{\frac {5}{6}}}$

(7)

${\displaystyle {\frac {1}{6}}+{\frac {1}{2}}}$

(8)

${\displaystyle {\frac {2}{5}}+{\frac {4}{15}}}$

(9)

${\displaystyle {\frac {1}{10}}+{\frac {1}{15}}}$

(10)

${\displaystyle {\frac {1}{6}}+{\frac {1}{18}}}$

(11)

${\displaystyle {\frac {2}{3}}-{\frac {1}{2}}}$

(12)

${\displaystyle {\frac {5}{6}}-{\frac {2}{3}}}$

(13)

${\displaystyle {\frac {4}{5}}-{\frac {2}{3}}}$

(14)

${\displaystyle {\frac {7}{6}}-{\frac {3}{8}}}$

(15)

${\displaystyle {\frac {2}{3}}-{\frac {3}{7}}}$

(16)

${\displaystyle {\frac {13}{10}}-{\frac {4}{5}}}$

(17)

${\displaystyle {\frac {4}{3}}-{\frac {5}{6}}}$

(18)

${\displaystyle {\frac {17}{15}}-{\frac {3}{10}}}$

(19)

${\displaystyle {\frac {9}{10}}-{\frac {2}{5}}}$

(20)

${\displaystyle {\frac {2}{3}}-{\frac {1}{6}}}$