Question

4. Write five such situations for the following
where brackets would be necessary ?
(a) 7 (8-3) (b) (7 + 2) (10 - 3) [NCERT] 6​

Answer 1

Answer:

(7+2)(10−3)

[we will open one of the brackets]

7(10−3)+2(10−3)

={(7×10)−(7×3)+{(2×10−2×3)}

={70−21}+{20−6}

=49+14

=63.