a, 32+68:17×5-29
=32+4×5-29
=32+20-29
=52-29
=23
b, 15×48-30×24+115
=720-720+115
=0+115
=115
a) 32 + 68 : 17 x 5 - 29 = 23
b) 15 x 48 - 30 x 24 + 115 = 15 x 48 - 15 x 2 x 24 + 115
= 15 x 48 - 15 x 48 + 115
= 0 + 115
= 115
goodluck!!
a, 32 + 68 : 17 x 5 - 29
= 32 + 4 x 5 - 29
= 32 + 20 - 29
= 52 - 29
= 23
b, 15 x 48 - 30 x 24 + 115
= 720 - 720 + 115
= 0 + 115
= 115
Hok tốt !
a)32+68:17.5-29
= 32+4.5-29
= 32+20-29
= 52-29
= 23
b)15.48-30.24+115
= 720-720+115
= 115
k mk nha bn
=
a) 32+68:17*5-29
= 32+4*5-29
= 32+20-29
= 52 - 29
= 23
b) 15*48-30*24+115
= 720-720+115
=115
Mn ủng hộ nhiều nha
a, 32+68:17×5-29
=32+4×5-29
=32+20-29
=52-29
=23
b, 15×48-30×24+115
=720-720+115
=0+115
=115
Bài làm
a, 32 + 68 : 17 x 5 - 29
= 32 + 4 x 5 - 29
= 32 + 20 - 29
= 52 - 29
= 23
b, 15 x 48 - 30 x 24 + 115
= 720 - 720 + 115
= 0 + 115
= 115
hok tốt
b, 15 x 48 - 30 x 24 + 115
= 720 - 720 + 115
= 0 + 115
= 115
P/s tham khảo nha
