Question

Tính bằng cách thuận tiện: 

7,5 : 0,5 + 7,5 x 8

Answer 1

\(7,5\div0,5+7,5\times8 \)

\(=7,5\times2+7,5\times8\)

\(=7,5\times\left(2+8\right)\)

\(=7,5\times10\)

\(=75\)

Answer 2

\(=7.5\times2+7.5\times8\\ =7.5\times\left(8+2\right)=7.5\times10=75\)

Answer 3

\(7,5:0,5+7,5\times8\\ =7,5:\left(0,5\times8\right)\\ 7,5:4=1,875\)

Answer 4

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