Question

help me............ex 9​

Answer 1

[(30+3)x10]-3+3=330
[30+3x10]-(3+3)=54
30+[3x(10-3)]+3=54
30+3x[10-(3+3)]=42

Answer 2

Răspuns:

Explicație pas cu pas:

[(30+3)x10]-3+3=

=(33x10)-3+3=

=330-3+3=

=327+3=330

30+[3x(10-3)]+3=

=30+(3x7)+3=

=30+21+3=

=51+3=54

30+[(3x10)-(3+3)]=

=30+(30-6)=

=30+24=54

30+3x[10-(3+3)]=

30+3x(10-6)=

=30+3x4=

=30+12=42