Q109Multiple choice
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 _______ = _______ – ________