Question

Observe the pattern and fill in the blanks to make the statement true:

– 5 × 4 = – 20
-5 × 3 = -15 = -20 – (-5)
-5 × 2 =_____ = -15 – (-5)
-5 × 1 =_____ = ______
-5 × 0 = 0 =_______
-5 × -1 = 5 = _____
– 5 × – 2 =__ =______

Answer 1

-10, -5, 10, -10 – (-5), -5 – (-5), 0 – (-5), 10, 5 – (-5):

-5 × 2 = -15 – (-5)
-5 × 1 = -5 = – 10 – (-5)
-5 × 0 = 0 =-5 – (-5)
-5 × -1 = 5 = 0 – (-5)
– 5 × – 2 =10 = 5 – (-5)