Question

TEMĂ SUPLIMENTARĂ Calculați în două moduri: = - - = = = = 6 x ( 10 - 2) = 4x ( 8 - 2) = 5x ( 9-3)= 3 x ( 7+2) = 9x ( 6+2) = 3 x (9-6)= 6 x 7 - 6 x 3 = 5x 7 + 3 x 7= 6 x 10 + 9 x 10 = ( 56 - 4) x 10 = ( 57 +36) x 10 = 4 x ( 3+5) = 9 x ( 9-3)= 5x ( 3+7)= 9 x ( 3+6)= 4 x ( 7+3)= 6x (3+2) = 3 x 6 + 3 x 9= 6 x 8 – 4 x 8 = 100x 7 - 100 x 4 = 10 x ( 21 + 35)= 10 x ( 72 -38) =​

Answer 1

Explicație pas cu pas:

6x(10-2)=6x8=48

(6x10)-(6x2)=60-12=48

4x(8-2)=4x6=24

(4x8)-(4x2)=32-8=24

5x(9-3)=5x6=30

(5x9)-(5x3)=45-15=30

3x(7+2)=3x9=27

(3x7)+(3x2)=21+6=27

9x(6+2)=9x8=72

(9x6)+(9x2)=54+18=72

3x(9-6)=3x3=9

(3x9)-(3x6)=27-18=9

6x7-6x3=42-18=24

6x(7-3)=6x4=24

5x7+3x7=35+21=56

7x(5+3)=7x8=56

6x10+9x10=60+90=150

10x(6+9)=10x15=150