Question

Tính Nhanh 

a. 146x273+437x273+273z418-273

b.43x37+43x73+57x66+57x44

c.48x19+48x115+137x52

d.4x325x6+4x69x24+3x399x8

e.58x27+54x71

Answer 1

a, 

146x273+437x273+273z418-273

273 x (146+737+418-1)

273 x1000=273000

b.43x37+43x73+57x66+57x44

= 43 x (37+73) + 57x (66+44)

= 43 x 110 + 57 x 110

= 110 x(43+57)

=110x100

=11000

Answer 2

a)146x273+437x273+273z418-273
273 x (146+737+418-1)
273 x1000=273000
b)43x37+43x73+57x66+57x44
= 43 x (37+73) + 57x (66+44)
= 43 x 110 + 57 x 110
= 110 x(43+57)
=110x100
=11000

hok tốt