Question

Compare 18×(-3)+21and 18×[(-3)+21]​

Answer 1

LHS

18×(-3)+21 ( First multiplication then addition DMAS)

-54+21

-33

RHS

18×[(-3)+21] (First solve the brackets then divide,multiply,add, subtract)

18×[18]

18×18

324

Here we used the system of BODMAS ,i.e,

B- Bracket

O-Off

D-Division

M-Multiplication

A-Addition

S-Subtraction

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Answer 2

18×[(-3)+21) is greater

Step-by-step explanation:

Solving by BODMAS rule

18×(-3)+21 = 18×[(-3)+21]

-54+21 = 18 × 18

-33 = 324

-33 < 324