Question

201 Calcule.
a) 4,2+2,06=
b) 9,002 +1,042 =
c) 3,12+1,432 =
d) 1,724-0,201 =
e) 1,2-1,05 =
f) 12,096-3,4 =
g) 23,4-15,0072 =

Answer 1

a) 4,2+2,06=

$\frac{\begin{matrix}\:\:&\textbf{4}&.&2&0\\ +&\textbf{2}&.&0&6\end{matrix}}{\begin{matrix}\:\:&\textbf{6}&.&2&6\end{matrix}}$

b) 9,002 +1,042 =

$\frac{\begin{matrix}\:\:&1&\:\:&\:\:&\:\:&\:\:\\ \:\:&\:\:&9&0&0&2\\ +&\:\:&1&0&4&2\end{matrix}}{\begin{matrix}\:\:&1&0&0&4&4\end{matrix}}$

c) 3,12+1,432 =

$\frac{\begin{matrix}\:\:&\textbf{3}&.&1&2&0\\ +&\textbf{1}&.&4&3&2\end{matrix}}{\begin{matrix}\:\:&\textbf{4}&.&5&5&2\end{matrix}}$

d) 1,724-0,201 =

$\frac{\begin{matrix}\:\:&\textbf{1}&7&2&4\\ -&\textbf{0}&2&0&1\end{matrix}}{\begin{matrix}\:\:&\textbf{1}&5&2&3\end{matrix}}$

e) 1,2-1,05 =

$\frac{\begin{matrix}\:\:&\textbf{\:\:}&\:\:&1&10\\ \:\:&\textbf{1}&.&\linethrough{2}&\linethrough{0}\\ -&\textbf{1}&.&0&5\end{matrix}}{\begin{matrix}\:\:&\textbf{0}&.&1&5\end{matrix}}$

f) 12,096-3,4 =

$\frac{\begin{matrix}\:\:&\textbf{0}&11&\:\:&10&\:\:&\:\:\\ \:\:&\textbf{\linethrough{1}}&\linethrough{12}&.&\linethrough{0}&9&6\\ -&\textbf{0}&3&.&4&0&0\end{matrix}}{\begin{matrix}\:\:&\textbf{0}&8&.&6&9&6\end{matrix}}$

g) 23,4-15,0072 =

$\frac{\begin{matrix}\:\:&\textbf{1}&13&\:\:&3&9&9&10\\ \:\:&\textbf{\linethrough{2}}&\linethrough{3}&.&\linethrough{4}&\linethrough{10}&\linethrough{10}&\linethrough{0}\\ -&\textbf{1}&5&.&0&0&7&2\end{matrix}}{\begin{matrix}\:\:&\textbf{0}&8&.&3&9&2&8\end{matrix}}$

Os pontos

são virgulas acaso não compreenda direito

Answer 2

Resposta:

a) 14

b) 10.044

c) 1.744

d) 1.523

e) 0,15

f) 12.062

g) 8,3928