Simple operation: 24 × (- 5) of 49 and 25=

Simple operation: 24 × (- 5) of 49 and 25=


24 × (- 5)
=(50-1/25)×(-5)
=50×(-5)+1/25×5
=-250+1/5
=-249 and 1 / 5



Simple calculation: (1 + 24 + 25) x (24 + 25 + 26) - (1 + 24 + 25 + 26) x (24 + 25)


Original formula = 1x (24 + 25 + 26) + (24 + 25) x (24 + 25 + 26) - 1x (24 + 25) - (24 + 25 + 26) x (24 + 25)
=26