Question

Cálculo mental x3 x4 x7 x9
10
20
30
40
50
60
70
80
90
100. ???

Answer 1

Resposta:

eu acho que e 756 pelo cálculo de vezes

Answer 2

Resposta:

10 x 3 = 30

10 x 4 = 40

10 x 7 = 70

10 x 9 = 90

20 x 3 = 60

20 x 4 = 80

20 x 7 = 140

20 x 9 = 180

30 x 3 = 90

30 x 4 = 120

30 x 7 = 210

30 x 9 = 270

40 x 3 = 120

40 x 4 = 160

40 x 7 = 280

40 x 9 = 360

50 x 3 = 150

50 x 4 = 200

50 x 7 = 350

50 x 9 = 450

60 x 3 = 180

60 x 4 = 240

60 x 7 = 42

60 x 9 = 540

70 x 3 = 210

70 x 4 = 280

70 x 7 = 490

70 x 9 = 630

80 x 3 = 240

80 x 4 = 320

80 x 7 = 560

80 x 9 = 720

90 x 3 = 270

90 x 4 = 360

90 x 7 = 630

90 x 9 = 810

100 x 3 = 300

100 x 4 = 400

100 x 7 = 700

100 x 9 = 900