Question

maths class 7th chapter Integers.
match the following ​

Answer 1

Answer:

a-iv

b-vi

c-ii

d-viii

e-iii

f-vii

g-v

h-i

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Answer 2

Solution:

Apply BODMAS to solve the mathematical expression given on the left side to find the answer.

Know that, BODMAS = Bracket Of Division Multiplication Addition Subtraction.

Follow follwing rules for sign while multiplying:

• $\[\left( + \right) \times \left( + \right) = \left( + \right)\]$
• $\[\left( + \right) \times \left( - \right) = \left( - \right)\]$
• $\[\left( - \right) \times \left( + \right) = \left( - \right)\]$
• $\[\left( - \right) \times \left( - \right) = \left( + \right)\]$

PART a.)

Simplify

$\[\begin{array}{l} - 6 \times \left( { - 10} \right) \times \left( { - 8} \right) = - 6 \times 80\\ \Rightarrow - 6 \times \left( { - 10} \right) \times \left( { - 8} \right) = - 480\end{array}\]$

Hence, a.↔(iv)

PART b.)

Simplify

$\[\begin{array}{l} - 5 \times \left( { - 4} \right) \times \left( { - 10} \right) = - 5 \times 40\\ \Rightarrow - 5 \times \left( { - 4} \right) \times \left( { - 10} \right) = - 200\end{array}\]$

Hence, b.↔(vi)

PART c.)

Simplify

$\[7 \times 5 \times \left( { - 5} \right) = - 175\]$

Hence, c.↔(ii)

PART d.)

Simplify

$\[8 \times 3 \times 8 = 192\]$

Hence, d.↔(viii)

PART e.)

Simplify

$9 \times 9 \times \left( { - 5} \right) = - 405$

Hence, e.)↔(iii)

PART f.)

Simplify

$6 \times 6 \times \left( { - 2} \right) = - 72$

Hence, f.)↔(vii)

PART g.)

Simplify

$9 \times 10 \times 6 = 540$

Hence, g.)↔(v)

PART h.)

Simplify $- 6 \times \left( { - 2} \right) \times 8 = 96$

Hence, h.)↔(i)

Hence, the matched column is as follows: