a, 27,42 + 51,24 + 22,58 + 48,76
= ( 27,42 + 22,58 ) + ( 51,24 + 48,76 )
= 50 + 100
= 150
b, 28,67 x 99 + 28,67
= 28,67 x ( 99 + 1 )
= 28,67 x 100
= 2867
a) \(\text{27,42 + 51,24 + 22,58 + 48,76}\)
\(=\left(27,42+22,58\right)+\left(51,24+48,76\right)\)
\(=50+100\)
\(=150\)
b) \(\text{28,67 x 99 + 28,67}\)
\(=28,67\cdot99+28,67\cdot1\)
\(=28,67\cdot\left(99+1\right)\)
\(=28,67\cdot100\)
\(=2867\)
a) 27,42+51,24 + 22,58+48,76
= (27,42+22,58)+ (51,24+48,76)
= 50+100
= 150
b) 28,67 x 99 + 28,67
= 28,67 x 99 + 28,67 x 1
= 28,67 x ( 99 + 1 )
=28,67 x 100 = 2867
a) 27,42 + 51,24 + 22,58 + 48,76
= ( 27,42 + 22,58 ) + ( 51,24 + 48,76 )
= 50 + 100
= 150
b) 28,67 x 99 + 28,67
= 28,67 x 99 + 28,67 x 1
= 28,67 x ( 99 + 1 )
= 28,67 x 100
= 2867
