Question

Pls ans the ones which are circled in your note

Answer 1

4 th one is 9

step by step explanation

According to the BODMAS rule we first need to solve brackets

so

19-[4+{16-(12-2)}]

in small bracket if we solve

we will get

19- [ 4+ { 16-10}]

now let's solve the medium brackets

so 16-10=6

so

19-[4+6]

now let's solve the big brackets

so 4+6=10

so

19-10=9

now let's solve second one

27-[18-{16-(5-4-1)]}

so

let's solve small bracket

5-4-1

according to integers when there are two numbers with negative signs lying side by side we need to add them

so we will get the answer as =-4-1=-5

so

5-5=0

so

27-[18-{16-0}]

so now let's solve second bracket

16-0=16

so

27-[18-16]

so now let's solve third brackets

18-16=2

so

27-2=25

you have got your answer now