Question

35×(59-35 )= în doua moduri 43×(247-159)= (78-39)×14= (129-109)×456=

Answer 1

1) 35×24=840
35×59-35×35=2065-1225=840
2) 43×88=3784
43×247-43×159=10621-6837=3784
3)39×14=546
14×78-14×39=1092-546=546
4)20×456=9120
456×129-456×109=58824-49704=9120

Answer 2

35×24=840
35×59-35×35=2065-1225=840
43×(247-159)=43×88=3784
43×247-43×159=10621-6837=3784
39×14=546
78×14-39×14=1092-546=546
20×456=9120
129×456-109×456=58824-49704=9120