TH C HI N PHÉP TÍNH
Bài 1: Th c hi n phép tính: ự ệ
g)1200 : 2 + 6
2
.2
1
+ 18
d)7
9
: 7
7
– 3
2
+ 2
3
.5
2
a)3.5
2
+ 15.2
2
– 26:2
b)5
3
.2 – 100 : 4 + 2
3
.5
e)20 : 2
2
+ 5
9
: 5
8
h)5
9
: 5
7
+ 70 : 14 – 20
c)6
2
: 9 + 50.2 – 3
3
.3
f)100 : 5
2
+ 7.3
2
i)3
2
.5 – 2
2
.7
+ 8
Bài 2: Th c hi n phép tính: ự ệ
i)2345 – 1000 : [19 – 2(21 – 18)
2
]
a)47 – [(45.2
4
– 5
2
.12):14]
j)128 – [68 + 8(37 – 35)
2
] : 4
b)50 – [(20 – 2
3
) : 2 + 34]
k)568 – {5[143 – (4 – 1)
2
] + 10} : 10
c)10
2
– [60 : (5
6
: 5
4
– 3.5)]
l)307 – [(180 – 160) : 2
2
+ 9] : 2
d)50 – [(50 – 2
3
.5):2 + 3]
m)205 – [1200 – (4
2
– 2.3)
3
] : 40
e)8697 – [3
7
: 3
5
+ 2(13 – 3)]
n)177 :[2.(4
2
– 9) + 3
2
(15 – 10)]
f)2011 + 5[300 – (17 – 7)
2
]
o)125(28 + 72) – 25(3
2
.4 + 64)
g)695 – [200 + (11 – 1)
2
]
p)500–{5[409 – (2
3
.3 – 21)
2
] + 10
3
} : 15
h)129 – 5[29 – (6 – 1)
2