a. 75,24 x 99 + 75,24
= 75,24 x 99 + 75,24 x 1
= 75,24 x ( 99 + 1 )
= 75,24 x 100
= 7524
b. 32,421 + 32,421 x 98 + 32,421
= ( 32,421 + 32,421 ) + 32,421 x 98
= 32,421 x 2 + 32,421 x 98
= 32,421 x ( 2 + 98 )
= 32,421 x 100
= 3242,1
a) 75,24 x 99 + 75,24
= 75,24 x (99 + 1)
= 75,24 x 100
= 7524
b) 32,421 + 32,421 x 98 + 32,421
= 32,421 x (98 + 1 + 1)
= 32,421 x 100
= 3242,1
a . 75,24 x 99 + 75,24
=75,24 x (99+1)
=75,24 x 100
=7524
b.32,421+32,421 x 98 +32.421
=32,421 x (1+98+1)
=32,421 x 100
3242,1
a.75,24 nhân 99 + 75,24=75,24 nhân [ 99 + 1]
=75,24 nhân 100
7524
