a, = 113 x (54+45+1) = 113 x 100 = 11300

b, = (36+62) x (117-17) = 98 x 100 = 9800

k mk nha

11300

9800

h cho mk nha

a) 113 x (54+45+1)=113 x 100=11300

b) (36+62) x (117-17)=98 x 100=9800

54.113+45.113+113=113.(54+45+1)=113.100=11300

17.(36+62)-17.(62+63)=17.(36+62-62-63)=17.(-27)=-459

11300 và

459

a, 54 x 113 + 54 x 113 + 113

= 113 x ( 54 + 54 + 1 )

= 113 x         109           

=      12 317

b, ( 532 x 7 - 266 x 14 ) x ( 532 x 7 + 266 )

=  ( 266 x 2 x 7 - 266 x 14 ) - ( 532 x 7 + 266 )

= 266 x ( 2 x 7 - 14 )

= 266 x ( 14 - 14 )

= 266 x 0

=       0

c, 117 x ( 36 + 62 ) - 17 x ( 62 + 36 )

= 117 x       98       - 17 x       98

= 98 x ( 117 - 17 )

= 98 x       100

=   9800

d, ( 145 x 99 + 145 ) - ( 143 x 101 - 143 )

= 145 x ( 99 + 1 ) - 143 x ( 101 - 1 )

= 145 x    100      - 143 x     100

= 14500              - 14300

=          200

e,      45 x 16 - 17                    

     ______________       

        45 x 15 + 28

Ta có :  45 x 16 - 17

=            720 - 17

=                703

Ta có :    45 x 15 + 28

=                675 + 28

=                   703

Vậy       45 x 16 - 17                                    703

          ______________       =             _____________         =         1

             45 x 15 + 28                                   703

 ( * giải thích thêm : __________ chính là dấu chia đó )

a,12 317

b, 0

c, 9 800

d, 200

e, 1

45 x 77 + 9 x 22 x 5 + 45

= 45 x 77 + 45 x 22 + 45

= 45 x (77 + 22 + 1)

= 45 x 100

= 4500

k mik nhé

45x22+9x22x5+45=3465+990+45

=4500

\(45x77+9x22x5+45\)

\(=45x77+45x22+45\)

\(=45x\left(77+22+1\right)\)

\(=45x100\)

\(=4500\)

a)63x113+36x113+113

=113x(36+63+1)

=113x100

=11300

b)115x(36+62)-15x(62+36)

=115x98-15x98

=11270-1470

=9800

a,63.113+36.113+113

=63.113+36.113+113.1

=(63+36+1).113

=100.113

=11300

b,115.(36+62)-15.(62+36)

=115.98-15.98

=(115-15).98

=100.98

=9800

a) 63 x 113 + 36 x 113 + 113 x1

    ( 63 + 36 + 1 ) x 113

    100 x 113 = 11300

b) 115 x ( 36 + 62 ) - 15 x ( 62 + 36 )

    115 x 98 - 15 x 98

     ( 115 - 15 ) x 98

     100 x 98 = 9800

96 * 37 - 3 * 26 * 32 - 96

= 96 * 37 - 96  * 26  - 96 * 1

= 96 * ( 37 - 26 - 1 - 1 )

= 96 * 10

= 960

=

96 x 37 - 3 x 26 x 32 - 96

= 3552- 3 x 26 x 32 - 96

= 3552 - 78 x 32 -96

= 3552 - 2496 -96

= 1056 - 96

= 960

ủng hộ nhé

ai k mình mình k lại

96 x 37 - 3 x 26 x 32 - 96

= 96 x 37 - 96 x 26 - 96 x 1

=96 x (27-26- 1)

=96 x 0

=0

2820 +2820+2820+2820-2820x3=2820x1+2820x1+2820x1+2820x1-2820x3=2820x(1+1+1+1-3)=2820x1=2820

25380

2820×4-2820×3

2820×(4-3)

2820×1

2820

789* 101 - 789 

= 789 * (101 - 1 ) 

= 789 * 100 

= 78900 

789*101-789

=789*(101-1)

=789*100

=78900

789*101-789

=789*101-789*1

=789*(101-1)

=789*100

=78900

 = 117 x 100 - 17 x 100

= ( 117 - 17 ) x 100

= 100 x 100

= 10000

117 x 100 - 17 x 100

=(117 - 17) x 100

= 100 x 100

= 10 000