Question

4. Care este numărul necunoscut? X: 6 x 5 = 25........... x:7 x 6 = 42 ..... X6 X: 8 x 5 = 30 x: 7 x 9 = 63... 7 9 X: 9 x 8 = 64 X: 10 x 5 = 25​

Answer 1

Răspuns:

X : 6 × 5 = 25

X : 30 = 25

X = 25 × 30

X = 750

X : 7 × 6 = 42

X : 42 = 42

X = 42 × 42

X = 1764

X : 10 × 5 = 25

X : 50 = 25

X = 25 × 50

X = 1250

X : 8 × 5 = 30

X : 40 = 30

X = 30 × 40

X = 1200

X : 7 × 9 = 63

X : 63 = 63

X = 63 × 63

X = 3969

X : 9 × 8 = 64

X : 72 = 64

X = 64 × 72

X = 4608