What is the value of the following expression-20 - 29 - -11 - 7

20 × 29 = 580 nbsp; (∵Positive x positve = Positive) ( 11) × 7 = 77 (∵Negative x positive = Negative) [1 mark] ∴ nbsp;20 × 29 + ( 11) × 7 = 580 77 ...

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Byju's Answer

Standard VIII

Mathematics

Multiplication of Negative Numbers

What is the v...

Question

What is the value of the following expression?
$20 \times 29 + (- 11) \times 7$

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Solution

$20 \times 29 = 580$ ( $∵$ Positive x positve = Positive)

$(- 11) \times 7 = - 77$ ( $∵$ Negative x positive = Negative)

$[1 m a r k]$

$∴ 20 \times 29 + (- 11) \times 7 = 580 - 77 = 503$

$[1 m a r k]$

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Similar questions

Which of the following is the value of $(\sqrt{11} - \sqrt{7}) (\sqrt{11} + \sqrt{7})$ ?

(a) -4

(b) 4

(d) $\sqrt{7}$

Q. Which of the following is the value of

(\sqrt{11} - \sqrt{7}) (\sqrt{11} + \sqrt{7})

?
(a) –4
(b) 4
(c)

\sqrt{11}

(d)

\sqrt{7}

Q. What is the value of the following expression?

20 \times 19 + (- 5) \times 7

Q. Which of the following is the value of

(\sqrt{11} - \sqrt{7}) (\sqrt{11} + \sqrt{7})

Q. What should be the value of

b,

if the value of

29 x y + 7 x - 10 + 6 b

is 18, when

x = 2

and

y = - 1

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What is the value of the following expression? 20×29+(−11)×7

20×29=580 (∵Positive x positve = Positive) (−11)×7=−77 (∵Negative x positive = Negative) [1 mark] ∴20×29+(−11)×7=580−77=503 [1 mark]

What is the value of the following expression?
$20 \times 29 + (- 11) \times 7$

$20 \times 29 = 580$ ( $∵$ Positive x positve = Positive)

$(- 11) \times 7 = - 77$ ( $∵$ Negative x positive = Negative)

$[1 m a r k]$

$∴ 20 \times 29 + (- 11) \times 7 = 580 - 77 = 503$

$[1 m a r k]$