Question

46 x 128 + 92 x 36 tính nhanh

Answer 1

Ta có 46 x 128 + 92 x 36 =46 x 128 +(2x46) x 36

=46 x 128 +46x72 

=46x(128+72)= 46x200=9200

Answer 2

\(\text{46 x 128 + 92 x 36}\)

= \(\text{46 . 128 +( 2 . 46 ) . 36}\)

= \(\text{46 . 128 +46. ( 36 . 2 ) }\)

\(\text{= 46 . 128 + 46 . 72 }\)

= \(46\left(72+128\right)\)

= \(46.200\)

= \(9200\)

 

Answer 3

46 x 128 + 92 x 36

=(128 + 92) x (36 + 46)

= 220 x 82

= 18040

Answer 4

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