Question

[Hạ Nguyệt Nhi]

Giúp mik với mik cảm ơn ạ !! 

Answer 1

[Toru]

a) $25.12$

$=25.4.3$

$=100.3=300$

b) $34.99$

$=34.(100-1)$

$=34.100-34.1$

$=3400-34=3366$

c) $47.101$

$=47.(100+1)$

$=47.100+47.1$

$=4700+47=4747$

d) $15.302$

$=15.(300+2)$

$=15.300+15.2$

$=4500+30=4530$

e) $125.32$

$=125.8.4$

$=1000.4=4000$

g) $123.1001$

$=123.(1000+1)$

$=123.1000+123.1$

$=123000+123=123123$