Question

Помогите пж срочно, 10 баллов дам!

Answer 1

$1)7 -3 = 4 \\ 4 \times 2 = 8cm \\ 2) - 2 - ( - 7) = - 2 + 7 = 5 \\ 2 \times 5 = 10cm \\ 3)3 - ( -1) = 3 + 1 = 4 \\ 2 \times 4 = 8cm \\ 4)0 - ( - 3) = 0 + 3 = 3 \\ 2 \times 3 = 6cm$