問１
\((\ 2\displaystyle\frac{11}{40}\ +\ \displaystyle\frac{3}{16}\ )\ ÷\ 1.25\ -\ \displaystyle\frac{7}{12}\ =\)
- 答え
- \(1\displaystyle\frac{29}{75}\)
問２
\(1\displaystyle\frac{1}{5}\ ×\ (\ 2\displaystyle\frac{1}{3}\ -\ 1.75\ )\ ÷\ 2\displaystyle\frac{1}{3}\ +\ \displaystyle\frac{1}{4}\ =\)
- 答え
- \(\displaystyle\frac{11}{20}\)または0.55
問３
\(4.2\ ×\ (\ \dfrac{5}{6}\ -\ \dfrac{5}{7}\ )\ +\ \dfrac{5}{8}\ ÷\ 0.5\ =\)
- 答え
- \(1\dfrac{3}{4}\)または1.75
問４
\(3\dfrac{3}{7}\ ×\ 2\dfrac{5}{8}\ ÷\ 7.2\ +\ \dfrac{1}{8}\ ÷\ 0.7\ -\ \dfrac{3}{56}\ =\)
- 答え
- \(1\dfrac{3}{8}\)
問５
\(4.2\ ×\ \dfrac{7}{64}\ ÷\ (\ 4.5\ -\ 3\dfrac{5}{8}\ )\ ×\ 2\dfrac{2}{3}\ =\)
- 答え
- \(1\dfrac{2}{5}\)または1.4
問６
\(\dfrac{15}{16}\ -\ (\ 4.2\ ×\ 0.375\ +\ 1.8\ ÷\ 2\dfrac{2}{3}\ )\ ÷\ 8\ =\)
- ヒント
- \(0.375=\dfrac{3}{8}\)
- 答え
- \(\dfrac{21}{32}\)