Question

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tính

a , 32+68: 17x5-29

b, 15x48-30x24+115

Answer 1

[_ℛℴ✘_]

a) \(32+68:17\cdot5-29\)

\(=32+4\cdot5-29\)

\(=32+20-29=23\)

b) \(15\cdot48-30\cdot24+115\)

\(=15\cdot\left(48-2\cdot24\right)+115\)

\(=15\cdot\left(48-48\right)+115\)

\(=15\cdot0+115=0+115=115\)

hok tốt ...

Answer 2

[mai văn chương]

a,\(32+68:17.5-29\)

= \(32+4.5-29\)

= \(32+20-29\)

=\(23\)

b,\(15.48-30.24+115\)

=\(720-720+115\)

=\(0+115\)

=\(0\)

hok tốt