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[tex]\huge\blue{\mid{\underline{\overline{\tt Question:}} \mid}}[/tex]

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[tex]\huge\blue{\mid{\underline{\overline{\tt Answer:}} \mid}}[/tex]

Answer the following;

(i) Starting from (-5) × 4, find (-5) × (-6)

Ans:

[tex]Given, ( - 5) \times 4 = - 20 \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ Therefore, \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ ( - 5) \times 3 = - 15 = - 20 + 5 \: \: \: \: \: \\ ( - 5) \times 2 = - 10 = - 20 + 10 \: \: \: \\ ( - 5) \times 1 = - 5 = - 20 + 15 \: \: \: \: \: \\ ( - 5) \times 0 = 0 = - 20 + 20 \: \: \: \: \: \: \: \: \: \\ ( - 5) \times ( - 1) = 5 = - 20 + 25 \: \: \\ ( - 5) \times ( - 2) = 10 = - 20 + 30 \\ ( - 5) \times ( - 3) = 15 = - 20 + 35 \\ ( - 5) \times ( - 4) = 20 = - 20 + 40 \\ ( - 5) \times ( - 5) = 25 = - 20 + 45 \\ ( - 5) \times ( - 6) = 30 = - 20 + 50[/tex]

(ii) Starting from (-6) × 3, Find (-6) × (-7)

Ans:

[tex]Given, (-6) × 3 = - 18 \: \: \: \: \: \: \: \: \: \: \: \\ \\ Therefore, \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ ( - 6) \times 2 = - 12 = - 18 + 6 \: \: \: \: \: \\ ( - 6) \times 1 = - 6 = - 18 + 12 \: \: \: \: \: \\ ( - 6) \times 0 = 0 = - 18 + 18 \: \: \: \: \: \: \: \: \: \\ ( - 6) \times ( - 1) = 6 = - 18 + 24 \: \: \\ ( - 6) \times ( - 2) = 12 = - 18 + 30 \\ ( - 6) \times ( - 3) = 18 = - 18 + 36 \\ ( - 6) \times ( - 4) = 24 = - 18 + 42 \\ ( - 6) \times ( - 5) = 30 = - 18 + 48 \\ ( - 6) \times ( - 6) = 36 = - 18 + 54 \\ ( - 6) \times ( - 7) = 42 = - 18 + 60[/tex]

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