Multiplication fact (-8) (-10) = 80 is same as division fact 80 ÷… - Vidyadip

Question

Multiplication fact $(-8) \times (-10) = 80$ is same as division fact $80 ÷ (-8) = (-10)$

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Answer

Multiplication fact	Division fact
$(-8) × (-10) = 80$	$80 + (-8) = (-10)$
$LHS = (-1) × 8 × (-1) × 10 = (-1) (-1) × 8 × 10$	$LHS = 80 + (-8) = \frac{80}{-8}$
$= 1 × 80 = 20 = RHS.$	$= (-10) = RHS.$

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