Question

Calculează şi stabileşte valoarea de adevăr: 7x9x1=3x3x7 , 5x4x2=2x5x2x2 ,6 X (9-5) = 6x9 -6x5 ,8x3 + 8x7= 8x10, 10 X 9-57> 49, 9x9-34 +16:4 < 63:9x5, A/F A/F A/F A/F A/F A/F​

Answer 1

Explicație pas cu pas:

7x9x1=3x3x7

63x1=9x7

63=63 (A)

5x4x2=2x5x2x2

20x2=10x4

40=40 (A)

6x(9-5) = 6x9 -6x5

6x4=54-30

24=24 (A)

8x3 + 8x7= 8x10

24+56=80

80=80 (A)

10 X 9-57> 49

90-57>49

33>49 (F)

9x9-34 +16:4 < 63:9x5

81-34+4<7x5

47+4<35

51<35 (F)