Question

Tính nhanh : 2x24x25+3x41x16+6x2x8x17

 

Answer 1

2x24x24+3x41x16+6x2x8x17

= (2x24)x25+(3x16)x41+(6x8)x2x17

=48x25+48x41+48x2x17

=48x(25+41+17x2)

48x100=4800

Answer 2

Tính nhanh : 2x56x24-3x36x16+4x12x95-6x3x8x5

Answer 3

=48.25+48.41+6.2.4.2.17

=48.25+48.41+48.34

=48.(25+41+34)

=48.100

=4800