1,234 + 100 + 12,34 = 12,35234

ủng hộ nha

=0,01234+12,34=12,35234

Tích nha

ủng hộ nha

1,234:100 + 12,34= 0,01234 + 12,34= 12,35234

a) 12,34 x 10,1 – 12,34 x 10

= 12,34 x ( 10,1 - 10)

= 12,34 x 0,1

= 1,234

# HOK TỐT #

Trả lời:

\(12,34.10,1-12,34.10\)

\(=12,34.\left(10,1-10\right)\)

\(=12,34.0,1\)

\(=1,234\)

Hok tốt!

Good girl

12,34 x 10,1 - 12,34 x 10

=12,34 x (10,1 - 10)

=12,34 x 0,1

=1,234

k mik nha

88 x 12,34 + 12,34 : 0,25 + 12,34 : 0,125

=12,34x(88+4+8)

=12,34x100

=1234

\(0,69\cdot12,34+12,34\cdot0,41-1,234\)

\(=12,34\cdot\left(0,69+0,41\right)-1,234\)

\(=12,34\cdot1,1-1,234\)

\(=13,574-1,234\)

\(=12,34\)

\(0,69\cdot12,34+12,34\cdot0,41-1,234\)

\(=0,69\cdot12,34+12,34\cdot0,41-12,34\cdot0,1\)

\(=12,34\cdot\left(0,69+0,41-0,1\right)\)

\(=12,34\cdot1=12,34\)

A, 

1,234x10=12,34

1,345x100=134,5

0,34x100=34

B,

1,234x0,1=0,1234

12,34x0,001=0,01234

1,345x0,01=0,01345

A.1,234x10=12,34

   1,345x100=134,5   

   0,34x100=34

B.1,234x0,1=0,123

   12,34x0,001=0,01234

    1,345x0,01=0,01345

Nếu đúng k mình nha

A. 1,234 nhân 10=12,34...

1,345 nhân 100=.134,5..

0,34 nhân 100=.34.

B. 1,234 nhân 0,1=c,1234...

12,34 nhân 0,001=.0,01234..

1,345 nhân 0,01=.0,01345..

TL

12,34 : 0,25 + 12,34 : 0,5 +12,34 : 0,2 - 12,34 = 123,4 nha

HT

12,34 : 0.25 +12,34 : 0,5 + 12,34 : 0,2 - 12,34 = 123,4
mk ko chắc nữa