Question

3 x 3 + 19 - 4 x 4 =
6 x 4 + 3 x 4 - 5 =
8 x 5 - 3 x 2 + 7 =
5 x 9 - 4 - 3x7​

Answer 1

Răspuns:

3 x 3 +19 -4 × 4 = 9 + 19 - 16 = 19

6 x 4 + 3 x 4 -5 = 24 + 12 - 5 = 31

8 × 5 - 3 x 2 +7 = 40 - 6 +7 = 41

5 x 8 - 4 - 3 x 7 = 40 - 4 - 21 = 15

Answer 2

Explicație pas cu pas:

3×3+19-4×4=

9+19-16=

28-16=

12

6×4+3×4-5=

24+12-5=

36-5=

31

8×5-3×2+7=

40-6+7=

34+7=

41

5×9-4-3×7=

45-4-21=

41-21=

20