Bài 1
a, Tính
$2^{2}$ . 3 – ( $1^{10}$ + 8 ) : 3
$6^{2}$ : 43 + 2 . $5^{2}$
$3^{3}$ . 118 – $3^{3}$.18
15. $2^{3}$ + 4.3 – 5.7
150 – [$10^{2}$ – (14 – $11)^{2}$ . $2007^{0}$ ]
4.$5^{2}$ -3 . $2^{3}$
Bài 1
a, Tính
$2^{2}$ . 3 – ( $1^{10}$ + 8 ) : 3
$6^{2}$ : 43 + 2 . $5^{2}$
$3^{3}$ . 118 – $3^{3}$.18
15. $2^{3}$ + 4.3 – 5.7
150 – [$10^{2}$ – (14 – $11)^{2}$ . $2007^{0}$ ]
4.$5^{2}$ -3 . $2^{3}$
2^2.3-(1^10+8):3
=12-18:3
=6
6^2:43+2.5^2
=36:43+50
=2186/43
3^3.118-3^3.18
=3^3.(118-18)
=2700
15. 2^3 + 4.3 – 5.7
=15.8+12-35
=97
150 – [10^2 – (14 – 11)^2 . 2007^0]
=150-100
=50
4.5^2 -3 . 2^3
=100-24
=76
Đáp án:
Giải thích các bước giải:
a) 2² .3 – (1¹⁰ + 8) :3
= 4 . 3 – ( 1 + 8) :3
= 12 – 9 : 3
= 12 – 6
= 6
b) 6² : 43 + 2 . 5²
= 36 : 43 + 2.25
= 36/43 + 50
= 36/43 + 2150/43
= 2186/43
c) 3³ .118 – 3³ .18
= 3³. ( 118 – 18)
= 27 .100
= 2700
d) 15 . 2³ + 4. 3 – 5. 7
= 15 . 8 + 12 – 35
= 120 + 12 – 35
= 97
e) 150 – [ 10² – ( 14 – 11)² .2007⁰ ]
= 150 – [ 100 – 3² . 1 ]
= 150 – ( 100 – 9)
= 150 – 91
= 59
f) 4. 5² – 3. 2³
= 4 . 25 – 3 . 8
= 100 – 24
= 76