How do you evaluate $21\div ( 3+ 4) \cdot 9- 2^ { 3}$ ?

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Answer 1 · 2017-09-14T10:38:58

$19$

$21 div (3 + 4) cdot 9 - 2^3$

Using PEDMAS

$21 div (7) cdot 9 - 2^3$

$3 cdot 9 - 2^3$

$3 xx 9 - 2^3$

$27 - 2^3$

$27 - 8$

$19$

How do you evaluate 21\div ( 3+ 4) \cdot 9- 2^ { 3}21\div ( 3+ 4) \cdot 9- 2^ { 3}?