`@` `\text {Ans}`

`\downarrow`

`a,`

`93,57 \times 19,45 - 93,57 \times 9,45`

`= 93,57 \times (19,45 - 9,45)`

`= 93,57 \times 10`

`= 935,7`

`b,`

`815,5 \times 0,08 + 815,5 \times 0,02`

`= 815,5 \times (0,08 + 0,02)`

`= 815,5 \times 0,1`

`= 81,55`

`c,`

`11 \times 46,79 - 46,79`

`= 46,79 \times (11 - 1)`

`= 46,79 \times 10`

`= 467,9`

`d,`

`92,305 \times 108 - 92,305 \times 8`

`= 92,305 \times (108 - 8)`

`= 92,305 \times 100`

`= 9230,5`

`e,`

`189,28 \times 78 - 189,28 \times 68`

`= 189,28 \times (78 - 68)`

`= 189,28 \times 10`

`= 1892,8`

a) \(93,57\times19,45-93,57\times9,45\)

\(=93,57\times\left(19,45-9,45\right)\)

\(=93,57\times10\)

\(=935,7\)

b) \(815,5\times0,08+815,5\times0,02\)

\(=815,5\times\left(0,08+0,02\right)\)

\(=815,5\times0,1\)

\(=81,55\)

c) \(11\times46,72-46,79\)

\(=46,79\times\left(11-1\right)\)

\(=46,79\times10\)

\(=467,9\)

d) \(92,305\times108-92,305\times8\)

\(=92,305\times\left(108-8\right)\)

\(=92,305\times100\)

\(=9230,5\)

e) \(189,28\times78-189,28\times68\)

\(=189,28\times\left(78-68\right)\)

\(=189,28\times10\)

\(=1892,8\)

a: =93,57(19,45-9,45)

=93,57*10=935,7

b: =815,5(0,08+0,02)

=815,5*0,1

=81,.55

d: =92,305*100=9230,5

e: =189,28*10=1892,8

c: =46,79*10=467,9

93,57 x 29,45 - 93,57 x 19,45 

= 93,57 x ( 29,45 - 19,45 )

= 93,57 x 10

= 935,7

chúc bạn thi được 300 điểm

93,57x29,45-93,57x19,45

=93,57x(29,45-19,45)

=93,57x10

=935,7

đáp số là 9230,5 đó bạn

92,305 x 108 - 92,305 x 8

= 92,305 x ( 108 - 8 )

= 92,305 x 100

= 9230,5

92,305 . 108 - 92,305 . 8

=92,305 . (108 - 8)

=92,305 . 100

=9230,5

a) \(2,8\times19,35-2,8\times19,35\)

\(=2,8\times\left(19,35-19,35\right)\)

\(=2,8\times0\)

\(=0\)

b) \(56,08\times93,23-56,08\times83,23\)

\(=56,08\times\left(93,23-83,23\right)\)

\(=56,08\times10\)

\(=560,8\)

c) \(1,3856\times194-1,3856\times94\)

\(=1,3856\times\left(194-94\right)\)

\(=1,3856\times100\)

\(=138,56\)

d) \(28,524\times3,8+28,524\times6,2\)

\(=28,524\times\left(6,2+3,8\right)\)

\(=28,524\times10\)

\(=285,24\)

c) \(101\times0,128-0,128\)

\(=0,128\times\left(101-1\right)\)

\(=0,128\times100\)

\(=12,8\)

a: =2.8*(19,35-19,35)=0

b: =56,08(93,23-83,23)

=10*56,08=560,8

c: =1,3856(194-94)

=1,3856*100

=138,56

d: =28,524*(3,8+6,2)

=28,524*10

=285,24

e: =0,128*100

=12,8

a, 2,8 x 19,35 - 2,8 x 19,35

=2,8 x (19,35 - 19,35) 

= 2,8 x 0 = 0                            

b, 56,08 x 93,23 - 56,08 x 83,23

= 56,08 x  (93,23 - 83,23)

= 56,08 x 10

= 560,8

c, 1,3856 x 194 - 1,3856 x 94

= 1,3856 x (194 - 94)

= 1,3856 x 100

= 138,56                       

d, (28,524 x 3,8 + 28,524 x 6,2)

= 28,524  x (3,8 + 6,2)

= 28,524 x 10

= 285,24

e,101 x 0,128 - 0,128

= (101 - 1) x 0,128

= 100 x 0,128

=12,8

\(101\times0,128-0,128=12,928-0,128=12,8\)

\(101\times1,196-1,996=120,796-1,996=118,8\)

1: 

=1,472x(81+19)

=1,472x100

=147,2

2: 

=1,986x(41+59)

=1,986x100

=198,6

3:=14,58x(7+3)

=14,58x10

=145,8

4:

=25,86x(17-7)

=25,86x10

=258,6

từ câu 5 đến câu 9 tương tự như vậy 

10:

=1,01x2011-2011x1

=2011x(1,01-1+

=2011x0,1

=201,1

1,472 × 81 + 1,472 × 19 = 147,2

 Câu hỏi 2:

1,986 × 41 + 1,986 × 59 = 198,6

 Câu hỏi 3:

14,58 × 7 + 14,58 × 3 = 145,8

Câu hỏi 4:

25,86 × 17 – 25,86 × 7 = 258,6

Câu hỏi 5:

93,57 × 19,45 – 93,57 × 9,45 = 935,7  

Câu hỏi 6:

65,79 × 5,7 + 65,79 × 4,3 = 657,9 

Câu hỏi 7:

29,34 × 87,56 – 29,34 × 77,56 =  293,4 

Câu hỏi 8:

265,3 × 0,06 + 265,3 × 0,04 =  26,53 

Câu hỏi 9:

1,7 × 28,3 – 1,7 × 28,2 = 0,17 

Câu hỏi 10:

1,01 × 2011 – 2011 = 20,11 

cau1=147,2

cau2=198,6

cau3=145,8

cau4=258,6

cau5=935,7

cau6=657,9

cau7=293,4

cau8=26,53

cau9=0,17

cau10=20,11