Observe the following patterns and fill in the blanks to make the statements true:
Observe the following patterns and fill in the blanks to make the statements true:
(a) – 5 × 4 = – 20
– 5 × 3 = – 15 = –20 – ( – 5)
– 5 × 2 = _______ = – 15 – ( –5)
– 5 × 1 = _______ = _______
– 5 × 0 = 0 = _______
– 5 × – 1 = 5 = _______
– 5 × – 2 = _______ = _______
(b) 7 × 4 = 28
7 × 3 = _______ = 28 – 7
7 × 2 = __ __ = _______– 7
7 × 1 = 7 = _______ – 7
7 × 0 = _______ = _______ –________
7 × – 1 = –7 = _______ – _______
7 × – 2 = _______ = _______ – _______
7 × – 3 _______ = _______ – ________
1 Answers
Observe the following patterns and fill in the blanks to make the statements true:
(a) – 5 × 4 = – 20
– 5 × 3 = – 15 = –20 – ( – 5)
– 5 × 2 = -10 = – 15 – ( –5)
– 5 × 1 = -5 = -10-(-5)
– 5 × 0 = 0 = -5-(-5)
– 5 × – 1 = 5 = 0-(-5)
– 5 × – 2 = 10 = 5-(-5)
(b) 7 × 4 = 28
7 × 3 = 21= 28 – 7
7 × 2 = 14 = 21 – 7
7 × 1 = 7 = 14 – 7
7 × 0 = 0 =7 –7
7 × – 1 = –7 = 0– 7
7 × – 2 =-14= -7 – 7
7 × – 3 = -21 = -14 - 7