Question

3 x 7 x ( 9 + 0 + 1 ) x 7 x 3 x ( 1 + 0 + 9 ) = ?

Answer 1

3 x 7 x ( 9 + 0 + 1 ) x 7 x 3 x ( 1 + 0 + 9 ) 

= 3 x 7 x 10  x 7 x 3 x 10

= 21 x 10 x 7 x 3 x 10

= 210 x 7 x 3 x 10

= 1470 x 3 x 10

=  4110 x 10

= 41100 

k mk nha bn 

Answer 2

= 44100 .

Xem đúng không rồi cho mình 1 k nha !

Answer 3

3 x 7 x ( 9 + 0 + 1 ) x 7 x 3 x ( 1 + 0 + 9 ) = 44100

Answer 4

\(=\left(9+0+1\right).\left(3.7\right).1\)

\(=10.21.1\)

\(=210.1=210\)

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Answer 5

\(3\times7\times\left(9+0+1\right)\times7\times3\times\left(1+0+9\right)\)

\(3\times7\times10\times7\times3\times10\)

\(\left(21\times10\right)\times\left(21\times10\right)\)

\(210\times210\)

\(=44100\)

Answer 6

3 x 7 x ( 9 + 0 + 1 ) x 7 x 3 ( 1 + 0 + 9 )

= 21 x 10 x 21 x 10

= ( 21 x 21 ) x ( 10 x 10 )

= 441 x 100

= 44100

Answer 7

3 x 7 x ( 9 + 0 + 1 ) x 7 x 3 x ( 1 + 0 + 9 ) = ?

21x10x21x10

210x210

44100

Hok tốt

Answer 8

\(3\times7\times\left(9+0+1\right)\times7\times3\times\left(1+0+9\right)\)

\(=3\times7\times10\times7\times3\times10\)

\(=\left(21\times10\right)\times\left(21\times10\right)\)

\(=210\times210\)

\(=44100\)

Answer 9

3×7×(9+0+1)×7×3×(1+0+9)

=21×10×21×10

=(21×21)×(10×10)

=441×100

=44 100