Question

Tính bằng cách thuận tiện nhất :

-23.63+23.21-58.23

Answer 1

\(\left(-23\right).63+23.21-58.23\)

\(=23.\left(-63+21-58\right)\)

\(=23.\left(-100\right)\)

\(=-2300\)

Answer 2

Có: -23.63+23.21-58.23

= 23. -63 + 23 . 21 - 58 . 23

= 23 ( -63 + 21 - 23 )

= 23 . -65

= -1495

Answer 3

\(-23.63+23.21-58.23=23.\left(-63\right)+23.21-23.58\)

\(=23.\left[\left(-63\right)+21-58\right]=23.\left(-100\right)=\left(-2300\right)\)