184 + 46 x 17 + 79 x 46 

= 46 x ( 184 + 17 + 79 )

= 46 x ( 201 + 79 )

= 46 x 270

= 12420

184+46.17+79.46=184+782+3634=4600

`a, 36 + 14 + 9`

`= 50 + 9`

`= 59`

`b, 51 + 12 + 18`

`=51 + 30`

`= 81`

`c, 65 + 9 + 5`

`= 70 + 9`

`= 79`

`d, 31 + 26 + 69`

`= 100 + 26`

`= 126`

=54/19

2 số đó là :161,207

g: =900x13

=11700

a)184 x 72 + 184 x 27 + 184

=184 x 72 + 184 x 27 + 184 x 1

= 184 x (72 + 27 + 1 )

=184 x 100=18400

c)1999 x 346 + 1999 + 653 x 1999

=1999 x 346 + 1999 + 653 x 1999 x 1

= 1999 x ( 346 + 653 + 1 )

= 1999 x 1000=1999000

e)23 x 5 x 7 x 4

= ( 23 x 7) x( 5 x 4)

= 161 x 20= 3220

b)1996 x 1257 – 1996 – 256 x 1996

=1996 x 1257 – 1996 – 256 x 1996 x 1

= 1996 x ( 1257 - 256 - 1 )

= 1996 x 1000= 1996000

\(25\times4\times46+25\times54\times4\)
\(\Rightarrow25\times4\times\left(46+54\right)\)
\(\Rightarrow100\times100\)
\(\Rightarrow10000\)

25 × 4 × 46 + 25 × 54 × 4 

=25 × 4 × ( 46 + 54 ) 

=100 × 100 

=10000

\(\text{X x 46 - X x 24 = 88 x 25 }\)

\(x.\left(46-24\right)=2200\)

\(x.22=2200\)

\(x=2200:22\)

\(x=100\)

học tốt

\(x.46-x.24=88.25\)

\(\Rightarrow x.\left(46-24\right)=2200\)

\(\Rightarrow x.22=2200\)

\(\Rightarrow x=100\)

hok tốt

46 x 4 x 25

=46(4.25)

=46.100

=4600

46 x 4 x 25

* Trả lời :

46 x 4 x 25

= 46 x ( 4 x 25 )

= 46 x 100 

= 4600