4 x 826 x 125 x 2 

= (4 x 125 ) x ( 826 x 2 )

= 500 x 1652 

= 826000

#HOK TỐT#

Có 4 x 826 x 125 x 2 

=(4\(\times\)2)\(\times\)125\(\times\)826

=8\(\times\)125\(\times\)826

=1000\(\times\)826=826000

Hok tốt

Thuận

Trl :

4 x 826 x 125 x 2 

= ( 125 x 4 x 2 ) x 826

= 1000 x 826

= 826000

# Hok tốt #

a) 19,17x25x4=19,17(25x4)=19,17x100=1917

b)1,79x(8x125)=1,79x1000=1790

chúc bạn học tốt

a) 216 x 5 x 2     

= 216 x (5x2)

= 216 x 10 = 2160                                                                         

b) 4 x 76 x 25

= (4 x 25) x 76

= 100 x 76 = 7600

c) 5 x 19 x 2   

= ( 5 x2 ) x 19

= 10 x 19 = 190                                                                               

d) 125 x 23 x 8

= ( 125 x 8) x 23

= 1000 x 23 = 23000

b. 2 x 8 x 50 x 25 x 125 = (2 × 50) × (8 × 125) × 25

= 100 × 1000 × 25

= 100000 × 25

= 2500000

= ( 2x50) x ( 8x125) x 25

= 100 x 1000 x 25

100000 x 25

= 2500000

b. 2 x 8 x 50 x 25 x 125 = (2 × 50) × (8 × 125) × 25

= 100 × 1000 × 25

= 100000 × 25

= 2500000

`5 xx 74 xx 2  = 5xx 2 xx 74 = 10xx74 = 740`

`4xx196xx5 = 4xx5xx196 = 20xx196 = 3920`

`(50 + 25)xx4 = 50xx4 + 25xx4 = 200 + 100 = 300`

`125xx(80+8) = 125xx80 + 125xx8 = 10000 + 1000 = 11000`

\(125\times25\times8\times4\)

\(=\left(125\times8\right)\times\left(25\times4\right)\)

\(=1000\times100\)

\(100000\)

125 x 25 x 8 x 4

= (125 x 8) x (25 x 4)

= 1000 x 100

= 100 000

c)125 x 25 x 8 x 4

=(125 x 8 ) + (25 x4 )

=1000 +100

=1100

Học tốtt=3

`@` `\text {Ans}`

`\downarrow`

`a)`

`20 \times 6 \times 5 \times 7`

`= (6 \times 7) \times (20 \times 5)`

`= 42 \times 100`

`= 4200`

`b)`

`125 \times 789 \times 8`

`= (125 \times 8) \times 789`

`= 1000 \times 789`

`= 789000`

`c)`

`2 \times 3 \times 4 \times 8 \times 50 \times 25 \times 125`

`= (2 \times 50) \times 3 \times (4 \times 25) \times (8 \times 125)`

`= 100 \times 3 \times 100 \times 1000`

`= 300000000`

a) 20 x 6 x 5 x 7

= ( 20 x 5 ) x ( 6 x 7 )

= 100 x 42

= 4200

a, 2x9x5x7x4x25

=2x5x4x25x9x7

=10x100x63

=63000

BẠN SAO THẾ A VÀ B dõ dàng

a, 4 x 25 x 9

= 100 x 9

= 900

b, 125 x 8 x 6

= 1000 x 6

= 6000

// bn cak lm sai conme đề rồi ạ?//