Question

Các bạn ơi giúp mk vs😍😍😍

Tính bằng các thuận tiện nhất :

345×57+345×32+3450+345

Answer 1

\(345.57+345.32+3450+345\)

\(=345.57+345.32+345.10+345.1\)

\(=345.\left(57+32+10+1\right)\)

\(=345.100=34500\)

Answer 2

=345*(57+32+3450)

=345*3539

=12220955

Answer 3

\(345\times57+345\times32+3450+345\)

\(=345\times57+345\times32+345\times10+345\times1\)

\(=345\times\left(57+32+10+1\right)\)

\(=345\times100\)

\(=34500\)

~ học tốt ~

Answer 4

\(345.57+345.32+3450+345\)

\(=345.\left(57+32+10+1\right)\)

\(=345.100\)

\(=34500\)

Answer 5

\(345.57+345.32+3450+345\)

\(=345\left(57+32\right)+345.10+345.1\)

\(=345.89+345\left(10+1\right)\)

\(=345.89+345.11\)

\(=345\left(89+11\right)=345.100=34500\)