683 x 35 = 23905

1954 x 425 = 830450

2438 x 306 = 746028

683 x 35 = 23905

1954 x 425 = 830450

2438 x 425 = 1036150

KB VS NHA!

683 . 35 = 23905

1954 . 425 = 68404875

2438 . 425 = 1036150

683 x 35 = 23905

1954 x 425  =830450

2438 x 425 = 1036150

hok tốt , là bạn bè r 

1954 x 153 = 298962

130 050 : 425 = 306

1954 x 153 = 298962

130 050 : 425 = 306

mứi đi hc zề mệt mún chết

298962

306

a) `683 xx 35 = 23905`

b) `1954 xx 425 = 830450`

c) `2438 xx 306 = 746028`

a) 683 x 35 = 23 905

b) 1954 x 425 = 830 450

c) 2438 x 306 = 746 028

a, 683 \(\times\) 35 =23905                                  

b, 1954 \(\times\) 425 =830450                           

c,2438 \(\times\) 306 =746028

a) 683\(\times\) 35=23906

    1954\(\times\) 425=830450

    2438\(\times\) 306=746028

b) \(\dfrac{7}{9}\times\dfrac{3}{35}=\dfrac{7\times3}{9\times35}=\dfrac{1}{15}\) 

\(\dfrac{9}{22}\times55=\dfrac{9\times55}{22}=\dfrac{45}{2}\) 

\(\dfrac{11}{17}:\dfrac{33}{34}=\dfrac{11}{17}\times\dfrac{34}{33}=\dfrac{11\times34}{17\times33}=\dfrac{2}{3}\) 

c) 36,66:7,8=4,7

     15,7:6,28=2,5

      27,63:0,45=61,4

d) 16 giờ 15 phút:5=3 giờ 15 phút

    14 phút 36 giây:12=1 phút 13 giây

a) 425 x 3475 + 425 x 6525
= 425 x (3475 + 6525)
= 425 x 10000
= 4250000
b) 175 x 1274 - 175 x 273 - 175
= 175 x 1274 - 175 x 273 - 175 x 1
= 175 x (1274 - 273 - 1)
= 175 x 1000
= 175000

\(312\times425+312\times574+312\)

\(=312\times\left(425+574+1\right)\)

\(=312\times1000\)

\(=312000\)

312 × 425 + 312 × 574 + 312

= 312 × (425 + 574 + 1)

= 312 × 1000

= 312000

312x425+312x574+312x1

=312x(425+574+1)

=312x1000

=3120000

a) 425 x 3475 + 425 x 6525 = 425 x ( 3475 + 6525 ) = 425 x 10000 = 4250000

b) 3876 x 375 + 375 x 6124 = 375 x ( 3876 + 6124 ) = 375 x 10000 = 3750000

c) 275 x 432 + 257 x 354 + 257 x 124 = 275 x ( 432 + 354 + 124 ) = 275 x 910 = 250250