Which of the following statement is false?

$- 7 + (- 6) = - 13$

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- 5 + 1 = 4

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$2 + (- 1) = 1$

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8 + (- 9) = - 1

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Solution

The correct option is B $- 5 + 1 = 4$
Here,
$- 7 - 6 = - 13,$
$- 5 + 1 = - 4,$
$2 - 1 = 1,$
$8 - 9 = - 1$
$∴$ The second statement is false.

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Similar questions

(\begin{matrix} \frac{- 9}{13} \times \frac{5}{6} \end{matrix}) - (\begin{matrix} \frac{- 9}{13} \times \frac{4}{6} \end{matrix}) = \frac{- 9}{13} \times (\begin{matrix} \frac{5}{6} - \frac{4}{6} \end{matrix})

.
If true then enter

1

and if false then enter

0

Subtract :

(i) $\frac{3}{4}$ from $\frac{1}{3}$ (ii) $\frac{- 5}{6}$ from $\frac{1}{3}$ (iii) $\frac{- 8}{9}$ from $\frac{- 3}{5}$

(iv) $\frac{- 9}{7}$ from -1 (v) $\frac{- 18}{11}$ from 1 (vi) $\frac{- 13}{9}$ from 0

(vii) $\frac{- 32}{13}$ from $\frac{- 6}{5}$ (viii) -7 from $\frac{- 4}{7}$

Prove that:
(i) $\frac{1}{3 + \sqrt{7}} + \frac{1}{\sqrt{7} + \sqrt{5}} + \frac{1}{\sqrt{5} + \sqrt{3}} + \frac{1}{\sqrt{3} + 1} = 1$
(ii) $\frac{1}{1 + \sqrt{2}} + \frac{1}{\sqrt{2} + \sqrt{3}} + \frac{1}{\sqrt{3} + \sqrt{4}} + \frac{1}{\sqrt{4} + \sqrt{5}} + \frac{1}{\sqrt{5} + \sqrt{6}} + \frac{1}{\sqrt{6} + \sqrt{7}} + \frac{1}{\sqrt{7} + \sqrt{8}} + \frac{1}{\sqrt{8} + \sqrt{9}} = 2$

State, true or false :
$(i) \frac{7}{9} = \frac{7 + 5}{9 + 5} (i i) \frac{7}{9} = \frac{7 - 5}{9 - 5} (i i i) \frac{7}{9} = \frac{7 \times 5}{9 \times 5} (i v) \frac{7}{9} = \frac{7 \div 5}{9 \div 5} (v) \frac{- 5}{- 12} is a negative rational number (v i) \frac{- 13}{25} is smaller than \frac{- 25}{13} .$

Q. Write (T) for true and (F) for false for each of the following statements:
(i) 0 ÷ (−6) = 0
(ii) (−8) ÷ 0 = 0
(iii) 15 ÷ (−1) = −15
(iv) (−16) ÷ (−4) = −4
(v) (−7) ÷ (−1) = 7
(vi) (−18) ÷ 9 = −2
(vii) 20 ÷ (−5) = −4
(viii) (−10) ÷ 1 = −10
(ix) (−1) ÷ (−1) = −1

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Which of the following statement is false?

The correct option is B −5+1=4Here, −7−6=−13, −5+1=−4, 2−1=1, 8−9=−1 ∴ The second statement is false.

The correct option is B $- 5 + 1 = 4$
Here,
$- 7 - 6 = - 13,$
$- 5 + 1 = - 4,$
$2 - 1 = 1,$
$8 - 9 = - 1$
$∴$ The second statement is false.