Страница 64, ГДЗ за 5 класс к математическому тренажеру Жохова
Задание 39. Все арифметические действия с десятичными дробями
А \[\begin{aligned} &\boxed{1 =} \\[4pt] &\begin{aligned} 0{,}5 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}5}}}}} \\ 0{,}1 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{10}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{2{,}5}}}}} &\cdot 0{,}4 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}25}}}}} &+ 0{,}75 \\ 0{,}05 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{20}}}}} \\[10pt] 0{,}25 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{4}}}}} \\ 0{,}3 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}7}}}}} \\ 0{,}2 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{5}}}}} \\ 1{,}4 &- \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}4}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}35}}}}} &: 1{,}35 \\[10pt] \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{2}}}}} &\cdot 0{,}5 \\ 0{,}85 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}15}}}}} \\ 0{,}25 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{4}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}95}}}}} &+ 0{,}05 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}8}}}}} &: 0{,}8 \\[10pt] 0{,}15 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}85}}}}} \\ 1{,}2 &: \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}2}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}01}}}}} &\cdot 100 \\ 40 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}025}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}2}}}}} &\cdot 5 \\[10pt] \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{3{,}7}}}}} &- 2{,}7 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}8}}}}} &+ 0{,}2 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}25}}}}} &\cdot 4 \\ 1{,}75 &- \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}75}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}1}}}}} &\cdot 10 \end{aligned} \end{aligned}\]
Б \[\begin{aligned} &\boxed{2 =} \\[4pt] &\begin{aligned} \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}2}}}}} &+ 0{,}8 \\ 50 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}04}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{20}}}}} &\cdot 0{,}1 \\ 1{,}25 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}75}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}4}}}}} &\cdot 5 \\[10pt] 1{,}5 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}5}}}}} \\ 0{,}2 &: \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}1}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}1}}}}} &\cdot 20 \\ 2{,}7 &- \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}7}}}}} \\ 0{,}2 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{10}}}}} \\[10pt] 40 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}05}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}02}}}}} &: 0{,}01 \\ 2{,}4 &: \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}2}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}6}}}}} &: 0{,}8 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}99}}}}} &+ 0{,}01 \\[10pt] 4{,}8 &- \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{2{,}8}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{1{,}95}}}}} &+ 0{,}05 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}02}}}}} &\cdot 100 \\ 1{,}75 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}25}}}}} \\ 10 &\cdot \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}2}}}}} \\[10pt] \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{8}}}}} &\cdot 0{,}25 \\ 1{,}85 &+ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}15}}}}} \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}2}}}}} &: 0{,}1 \\ \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{0{,}08}}}}} &+ 1{,}92 \\ 4{,}6 &- \boxed{\smash[b]{\underset{\hspace{2.5em}}{\textcolor{#e03131}{\mathbf{2{,}6}}}}} \end{aligned} \end{aligned}\]