Question

Calculo matematico quem resolver essas mutiplicação e muito inteligente.

e depois vou colocar os nomes de quem consegiu resolver isso ​

Answer 1

A multiplicação é uma das operações matemáticas básicas, dentre as quatro operações.

Resolvendo, temos:

$\large \displaystyle \text { \mathsf{ a) \quad \quad \begin{array}{r}\sf 57\kern10pt\\\sf\times 89\kern10pt\\\raisebox{3pt}{ \rule{1.5cm}{0.5pt} }\\\sf 513\kern10pt\\\sf +456 \: \:\kern10pt\\\raisebox{2pt}{ \rule{1.5cm}{0.5pt} }\\\sf 5\:073\kern10pt\end{array} } } \quad \quad \quad \large \displaystyle \text { \mathsf{ b) \quad \quad \begin{array}{r}\sf 4\kern10pt\\\sf\times 4\kern10pt\\\raisebox{2pt}{ \rule{1.0cm}{0.5pt} }\\\sf 16\kern10pt\end{array} } }$

$\large \displaystyle \text { \mathsf{c) \quad \quad \begin{array}{r}\sf 43\kern10pt\\\sf\times 21\kern10pt\\\raisebox{3pt}{ \rule{1.5cm}{0.5pt} }\\\sf 43\kern10pt\\\sf +86 \: \:\kern10pt\\\raisebox{2pt}{ \rule{1.5cm}{0.5pt} }\\\sf 903\kern10pt\end{array} } }$        

$\large \displaystyle \text { \mathsf{ d) \quad \quad \begin{array}{r}\sf 70\kern10pt\\\sf\times 77\kern10pt\\\raisebox{3pt}{ \rule{1.5cm}{0.5pt} }\\\sf 490\kern10pt\\\sf +490 \: \:\kern10pt\\\raisebox{2pt}{ \rule{1.5cm}{0.5pt} }\\\sf 5\;390\kern10pt\end{array} } }$

$\large \displaystyle \text { \mathsf{ e ) \quad \quad \begin{array}{r}\sf 55\kern10pt\\\sf\times 81\kern10pt\\\raisebox{3pt}{ \rule{1.5cm}{0.5pt} }\\\sf 55\kern10pt\\\sf +440 \: \:\kern10pt\\\raisebox{2pt}{ \rule{1.5cm}{0.5pt} }\\\sf 4\:455\kern10pt\end{array} } }$

$\large \displaystyle \text { \mathsf{ f ) \quad \quad \begin{array}{r}\sf 54\kern10pt\\\sf\times 96\kern10pt\\\raisebox{3pt}{ \rule{1.5cm}{0.5pt} }\\\sf 324\kern10pt\\\sf +486 \: \:\kern10pt\\\raisebox{2pt}{ \rule{1.5cm}{0.5pt} }\\\sf 5\:184\kern10pt\end{array} } }$

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