Question

X1. Calculează, folosind adunarea repetată:
1 x 2 = 1 + 1 =
6 x 2 = 6 + 6 =
2 x 2 = 2 + 2 =
7 x 2 = 7+ 7 =
3 x 2 = 3 + 3 =
8x 2 = 8 + 8 =
4 x 2 = 4 + 4 =
9 x 2 = 9 + 9 =
5 x 2 = 5 + 5 =
10 x 2 = 10 + 10 =​

Answer 1

Răspuns:

1+1=2

6+6=12

2+2=4

7+7=14

3+3=6

8+8=16

4+4=8

9+9=18

5+5=10

10+10=20

Answer 2

Explicație pas cu pas:

1×2=1+1=2

6×2=6+6=12

2×2=2+2=4

7×2=7+7=14

3×2=3+3=6

8×2=8+8=16

4×2=4+4=8

9×2=9+9=18

5×2=5+5=10

10×2=10+10=20