Question

[Khôi Nguyên Hacker Man]

Tính sau khi bỏ ngoặc

(13+49)-(13-135+49)

(18+29)+(158-18-29)

4.5²-3.(24-9)

[93-(20-7)]:16

Answer 1

[Ngọc Nguyễn]

(13+49)-(13-135+49)
= 13 + 49 - 13 +135 - 49
=135
(18+29)+(158-18-29)
=18+29+158-18-29
=158
4.5²-3.(24-9)
= 4.25-3.24-9
=19
[93-(20-7)]:16
=93-20+7:16
=73,4375

Answer 2

[Thanh Ngân]

\(\left(13+49\right)-\left(13-135+49\right)\)

\(=13+49-13+135-49\)

\(=135\)

\(\left(18+29\right)+\left(158-18-29\right)\)

\(=18+29+158-18-29\)

\(=158\)

\(4.5^2-3.\left(24-9\right)\)

\(=4.25-3.24+3.9\)

\(=100-72+27\)

\(=28+27\)

\(=55\)

\(\left\{93-\left(20-7\right)\right\}:16\)

\(=\left(93-20+7\right):16\)

\(=\left(73+7\right):16\)

\(=80:16\)

\(=5\)