Страница 18, ГДЗ по математике за 2 класс к тренажёру Погореловой
Вычисления вида 36 + 2, 36 + 20, 36 − 2, 36 − 20
\[\begin{aligned} 54 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 59}}}{+} 5 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 58 & \qquad 45 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 85}}}{+} 40 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 41 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 48}}}{+} 7 \\ 48 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 42}}}{-} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 43 & \qquad 98 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 38}}}{-} 60 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 96 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 56}}}{-} 40 \\ 32 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 36}}}{+} 4 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 36 & \qquad 52 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 59}}}{+} 7 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 55 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 58}}}{+} 3 \\ 77 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 74}}}{-} 3 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 75 & \qquad 89 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 9}}}{-} 80 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 87 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 37}}}{-} 50 \\ 96 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 76}}}{-} 20 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 98 & \qquad 14 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 64}}}{+} 50 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 11 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 91}}}{+} 80 \\ 65 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 25}}}{-} 40 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 62 & \qquad 76 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 73}}}{-} 3 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 79 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 72}}}{-} 7 \\ 83 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 89}}}{+} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 88 & \qquad 23 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 29}}}{+} 6 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 24 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 29}}}{+} 5 \\ 57 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 53}}}{-} 4 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{=}}}}\hspace{0.72em}} 53 & \qquad 64 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 62}}}{-} 2 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 66 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 63}}}{-} 3 \\ 25 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 55}}}{+} 30 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{>}}}}\hspace{0.72em}} 28 & \qquad 15 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 45}}}{+} 30 &\mathrel{\hspace{0.72em}\mathclap{\vcenter{\Large\bigcirc}}\mathclap{\textcolor{#e03131}{\pmb{\boldsymbol{<}}}}\hspace{0.72em}} 13 \overset{\mathclap{\textcolor{#808080}{\scriptstyle 63}}}{+} 50 \end{aligned}\]
\[\begin{aligned} 38 - 6 &= \textcolor{#e03131}{\cancel{\textcolor{black}{33}}}\;\textcolor{#e03131}{\mathbf{32}} & \qquad 85 + 4 &= \textcolor{#e03131}{\cancel{\textcolor{black}{87}}}\;\textcolor{#e03131}{\mathbf{89}} \\ 72 + 5 &= 77 & \qquad 37 - 5 &= \textcolor{#e03131}{\cancel{\textcolor{black}{31}}}\;\textcolor{#e03131}{\mathbf{32}} \\ 56 - 40 &= 16 & \qquad 68 - 7 &= \textcolor{#e03131}{\cancel{\textcolor{black}{62}}}\;\textcolor{#e03131}{\mathbf{61}} \\ 81 + 7 &= 88 & \qquad 43 + 50 &= \textcolor{#e03131}{\cancel{\textcolor{black}{48}}}\;\textcolor{#e03131}{\mathbf{93}} \\ 99 - 50 &= \textcolor{#e03131}{\cancel{\textcolor{black}{45}}}\;\textcolor{#e03131}{\mathbf{49}} & \qquad 96 - 3 &= 93 \\ 24 + 30 &= \textcolor{#e03131}{\cancel{\textcolor{black}{28}}}\;\textcolor{#e03131}{\mathbf{54}} & \qquad 52 + 6 &= \textcolor{#e03131}{\cancel{\textcolor{black}{57}}}\;\textcolor{#e03131}{\mathbf{58}} \\ 64 + 4 &= \textcolor{#e03131}{\cancel{\textcolor{black}{69}}}\;\textcolor{#e03131}{\mathbf{68}} & \qquad 79 - 40 &= 39 \\ 26 + 30 &= \textcolor{#e03131}{\cancel{\textcolor{black}{28}}}\;\textcolor{#e03131}{\mathbf{56}} & \qquad 97 - 3 &= \textcolor{#e03131}{\cancel{\textcolor{black}{95}}}\;\textcolor{#e03131}{\mathbf{94}} \end{aligned}\]
