Տնային աշխատանք 13, 24

5 + 3 = 8

3 + 3 = 6

1 + 3 = 4

0 + 3 = 3

-1 + 3 = 2

-3 + 3 = 0

a * a = S

a * b = S

(a * b) + (d * c) = S

(a * d) + (b * c) = S

(c * d) — (a * b) = S

a * (b + d) – d * c = S

Դասարանական աշխատանք 6, 14, 17

(-2) * 3 = -6

12 * 2 = 24

0,5 : 4 = 1/8

5 * 3 = 15

(2 + 3) * 2 = 10

-5 * 4 = -20

7 * 2 * 2 = 28

4 * 2 * 6 * 2 = 96

7 + 0 = 7

7 + 3 = 10

7 + -1 = 6

7 + -4 = 3

7 + -7 = 0

7 + -10 = -3

1 + 3 = 4

-2 – 4 = 2

10 – 6 = 4

-3 – (-8) = 5