Question

10-[-18-{11+30÷ (4-5-7)}]?​

Answer 1

10 + 18 - 11 + 30 ÷ 4 - 5 -7

(-)(-) = +

(+)(-) = -

(-)(+) = -

(+)(+) = +

Using the Bodmas rule :-

We know that :-

B ➾ Bracket (), [], {}

O ➾ Of

D ➾ Division ➗

M ➾ Multiplication ✖

A ➾ Addition ➕

S ➾Subtract ➖

Using the Bodmas rule Bracket - - - - 1

• ➾10-[-18-{11+30÷ (4-5-7)}]?

Using the Bodmas rule of Of

• ➾10 + 18 - 11 + 30 ÷ 4 - 5 - 7

Using the Bodmas rule of Division - - - - 3

• ➾10 + 18 - 11 + ( $\cancel\frac{30}{4}$ - 5 - 7)

• ➾10 + 18 - 11 + 7.5 - 5 - 7

Using the Bodmas rule of Multiplication - - - - - 4

So, there Is not the number of multiplication. So, it didn't multiply

Using the Bodmas rule of Addition - - - - 5

• ➾(10 + 18) - ( 11 + 7.5) - 5 - 7

• ➾28 - 18.5 - 5 - 7

Using the Bodmas rule of Subtraction - - - - 6

• ➾28 - 18.5 - 5 - 7

• ➾ - 2.5

So the answer is - 2.5

$\rule{200}3$