Question

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 _______ = _______ – ________

Answer 1

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