Question

va rog frumos ajutor nu știu să resolv​

Answer 1

Explicație pas cu pas:

2.a)

$4 \cdot {10}^{3} + 7 \cdot {10}^{2} + 8 =$

$= {\red{ \bf4}} \cdot {10}^{3} + {\red{ \bf7}} \cdot {10}^{2} + {\red{ \bf0}} \cdot {10}^{1} + {\red{ \bf8}} \cdot {10}^{0}$

$= {\red{ \bf4708}}$

b)

$6 \cdot {10}^{4} + 4 \cdot {10}^{3} + 7 \cdot {10}^{2} + 9 \cdot 10 =$

$= {\red{ \bf6}} \cdot {10}^{4} +{\red{ \bf4}} \cdot {10}^{3} + {\red{ \bf7}} \cdot {10}^{2} + {\red{ \bf9}} \cdot {10}^{1} + {\red{ \bf0}} \cdot {10}^{0}$

$= {\red{ \bf64790}}$

c)

$8 \cdot {10}^{3} + 9 \cdot 10 + 5 =$

$= {\red{ \bf8}} \cdot {10}^{3} + {\red{ \bf0}} \cdot {10}^{2} + {\red{ \bf9}} \cdot {10}^{1} + {\red{ \bf5}} \cdot {10}^{0}$

$= {\red{ \bf8095}}$

d)

$7 \cdot {10}^{5} + 4 \cdot {10}^{3} + 8 \cdot {10}^{2} + 3 =$

$= {\red{ \bf7}} \cdot {10}^{5} + {\red{ \bf0}} \cdot {10}^{4} + {\red{ \bf4}} \cdot {10}^{3} + {\red{ \bf8}} \cdot {10}^{2} + {\red{ \bf0}} \cdot {10}^{1} + {\red{ \bf3}} \cdot {10}^{0}$

$= {\red{ \bf704803}}$

e)

$4 \cdot {10}^{3} + 9 \cdot {10}^{2} + 6 =$

$= {\red{ \bf4}} \cdot {10}^{3} + {\red{ \bf9}} \cdot {10}^{2} + {\red{ \bf0}} \cdot {10}^{1} + {\red{ \bf6}} \cdot {10}^{0}$

$= {\red{ \bf4906}}$

f)

$5 \cdot {10}^{2} + 9 \cdot 10 + 8 =$

$= {\red{ \bf5}} \cdot {10}^{2} + {\red{ \bf9}} \cdot {10}^{1} + {\red{ \bf8}} \cdot {10}^{0}$

$= {\red{ \bf598}}$