Question

Tính nhanh : 

 1. 325 * 6  - 36 : 2 = 

2. 62 * 3 = 

3.  99 * 2  -  32 : 4 =

 

Answer 1

Tính nhanh : 

1 . 325 * 6 - 36  : 2 

= 325 * 6 - 6 * 6 : 2 

= 325 * 6 - 6 * 3 

= 6 * ( 325 - 3 ) 

= 6 * 322

= 1932

2 . 62 * 3 

= 186 

3 . 99 * 2 - 32 : 4 

= 198 - 8 

= 190

Answer 2

1.325*6 - 36 :2 =

1950- 18= 1932

2.62 * 3 = 186

3. 99* 2 - 32 :4=

198-8=190

Answer 3

1. 325x6-36:2=1932 2.62*2=124 3.99*2-32:4=190

Answer 4

a)325x6-36:2

=325x6-18

=6x325-6x3

=6x(325-3)

=6x322

=1932

b)62x3

=60x3+2x3

=180+6

=186

c)99x2-32:4

99x2-8

=(100x2-2)-8

=198-8

=190

Answer 5

1. 325 × 6- 36 : 2

= 1950 - 12

= 1928

2. 62 × 3

=186

3. 99 × 2 - 32 : 4

= 198 - 8

=190

Answer 6

325 x 6 - 36 : 2 =

1950 - 36 : 2     =

1950 - 18          = 1932

62 x 3                = 186

99 x 2 - 32 : 4    =

198 - 32 : 4        =

198 - 8               = 190