# data[].attributes.body
Bài 1.53 trang 27

a) 110 – 7 ² + 22 : 2 =

c) 5 . 8 – ( 17 + 8 ) :5 =

# data[].attributes.body
a)21+369+79
=390+79
=469

# data[].attributes.body
a) 21+369+79=469
b)2 mũ 3 . 4+81 :3 mũ2
=8 . 4+81 : 9
=32+9
=41

# data[].attributes.body
a) 21+369+79=469

b)2³.4+81:32
=8.4_81:9
=32+9
41

# data[].attributes.body
a)110-7 mũ2+22 : 2
=110-49+22 : 2
=110-49+11
=61+11
=72
c)5 . 8-(17+8) : 5
=5 . 8-25 : 5
=40-25 :5
=15 : 5
=3

# data[].attributes.body
a) 110 - 7² + 22 : 2
= 110 - 49 + 11
= 72
c) 5.8  - (17 + 8 ) : 5
= 40 -25 : 5
= 40 - 5
= 35

# data[].attributes.body
a) 110-7²+22:2
=110-49+11
=72
c)5.8-(17+8):5
=40-25:5
=40-5
=35

# data[].attributes.body
c)5 . 8-(17+8) : 5
=5 . 8 -25 : 5
=40-5
=35

# data[].attributes.body
21.[(1 245 + 987) : 23 - 15.12] + 21

= 21.(2232 : 8 - 180) + 21

= 21.(279 - 180) + 21

= 21.99 + 21

= 2 100

# data[].attributes.body
21 . [( 1 245 + 987 ) : 23  - 15 . 12 ] + 21
= 21 . ( 2232 : 8 - 180 ) + 21
= 21 . ( 279 - 180 ) + 21
= 21 . 99 +21
= 2 100