Question

5,6*7,9+7,9*1,7+7,3*2,1
 

Answer 1

\(5,6\times7,9+7,9\times1,7+7,3\times2,1\)

\(=7,9\times\left(5,7+1,7\right)+7,3\times2,1\)

\(=7,9\times7,3+7,3\times2,1\)

\(=7,3\times\left(7,9+2,1\right)\)

\(=7,3\times10\)

\(=73\)

Học tốt

Answer 2

814,212,9373

Answer 3

\(5,6\times7,9+7,9\times1,7+7,3\times2,1\)

\(=\left(5,6+1,7\right)\times7,9+7,3\times2,1\)

\(=7,3\times7,9+7,3\times2,1\)

\(=7,3\times\left(7,9+2,1\right)\)

\(=73\)

Chúc bạn học tốt !

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Answer 4

73 nha bạn

Answer 5

7,9×(5,6+1,7)+7,3×2,1

7,9×7,3+7,3×2,1

7,3×(7,9+2,1)

7,3×10

73

Answer 6

thanks các bạn