Since the additive inverse of ( ndash;9) is +9, the expression can be written as 16 + 9. nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; ...

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Byju's Answer

Standard VI

Mathematics

Additive Identity and Additive Inverse

Subtract:8 16...

Question

Subtract:

(8) 16 − (−9)

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Solution

Since the additive inverse of (–9) is +9, the expression can be written as 16 + 9.
As both the numbers have the same signs, we have:
16 + 9 = 25
The magnitude 16 is bigger than 9. So, we will give 25 the sign of +16, i.e., the positive sign.
∴ 16 – (–9) = +25

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$(i) \frac{5}{8} ~ f r o m \frac{- 3}{8} (i i) \frac{- 8}{11} ~ f r o m \frac{4}{11} (i i i) \frac{4}{9} ~ f r o m \frac{- 5}{9} (i v) \frac{1}{4} ~ f r o m \frac{- 3}{8} (v) \frac{- 5}{8} ~ f r o m \frac{- 13}{16} (v i) \frac{- 9}{22} ~ f r o m \frac{- 9}{33}$

Subtract : 4x – 3z from 9x + 8y + 9z

Q. Simplify:

(i)(−8) × 9 + (−8) × 7
(ii) 9 × (−13) + 9 × (−7)
(iii) 20 × (−16) + 20 × 14
(iv) (−16) × (−15) + (−16) × (−5)
(v) (−11) × (−15) + (−11) × (−25)
(vi) 10 × (−12) + 5 × (−12)
(vii) (−16) × (−8) + (−4) × (−8)
(viii) (−26) × 72 + (−26) × 28

Q. 9 : 8 : : 16 : ?

Q. In the given subtraction, what is the value of x + y?
1 9 0 7
- x 8
----------
1 8 y 9

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Subtract: (8) 16 − (−9)

Since the additive inverse of (–9) is +9, the expression can be written as 16 + 9. As both the numbers have the same signs, we have: 16 + 9 = 25 The magnitude 16 is bigger than 9. So, we will give 25 the sign of +16, i.e., the positive sign. ∴ 16 – (–9) = +25

Subtract:

(8) 16 − (−9)

Since the additive inverse of (–9) is +9, the expression can be written as 16 + 9.
As both the numbers have the same signs, we have:
16 + 9 = 25
The magnitude 16 is bigger than 9. So, we will give 25 the sign of +16, i.e., the positive sign.
∴ 16 – (–9) = +25