Question

Tính nhanh:

4 x 51 x 7 + 2 x 27 x 14 + 28 x 22

Answer 1

4 x 51 x 7 + 2 x 27 x 14 + 28 x 22

= 28 x 51 + 28 x 27 + 28 x 22

= 28 x (51 + 27 + 22)

= 28 x 100

=2800

Answer 2

4 x 51 x 7 + 2 x 27 x 14 + 28 x 22

= 28 x 51 + 28 x 27 + 28 x 22

= ( 51 + 17 + 22 ) x 28

= 100 x 28

= 2800

Answer 3

   4 x 51 x 7 + 2 x 27 x 14 + 28 x 22

= 28x51+28x27+28x22

=(51+17+22)x28

=100x28

=2800

Vậy.....................................................

Answer 4

4 x 51 x 7 x 2 x 27 x 14 + 28 x 22

= 28 x 51 + 28 x 27 + 28 x 22

= 28 x (51 + 27 + 22 )

= 28 x 100

= 2800

Cho xin cai li ke !!!

Answer 5

4 x 51 x 7 + 2 x 27 x 14 + 28 x 22

= ( 4 x 7 ) x 51 + ( 2 x 14 ) x 27 + 28 x 22

= 28 x 51 + 28 x 27 + 28 x 22

= 28 x ( 51 + 27 + 22 )

= 28 x 100 = 2800

Answer 6

\(4\times51\times7+2\times27\times14+28\times22\)

\(=\left(4\times7\right)\times51+\left(2\times14\right)\times27+28\times22\)

\(=28\times51+28\times27+28\times22\)

\(=28\times\left(51+27+22\right)\)

\(=28\times100\)

\(=2800\)

_Chúc bạn học tốt_

Answer 7

Tính nhanh

7,51 x 3,6 + 7,51 x 2,5 + 7,51 x 2,9 + 7,51 
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