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Addition of Integers

What is the v...

Question

What is the value of the following expression?
$9 \times 10 + (- 5) \times (- 6)$

A

120

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B

125

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C

110

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D

90

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Solution

The correct option is A 120
$9 \times 10 = 90$

$(- 5) \times (- 6) = 30$

$∴ 9 \times 10 + (- 5) \times (- 6) = 90 + 30$
$= 120$

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