\(a,5^6\cdot5^2:5^3\)
\(=5^8:5^3\)
\(=5^5\)\(=3125\)

\(b,5^4\cdot5^0:5^2\)
\(=5^4:5^2\)
\(=5^2\)\(=25\)

\(c,11^2\cdot11^4\cdot11^3\)
\(=11^6\cdot11^3\)
\(=11^9\)

\(d,10\cdot11^2+11^2\cdot10^2\)
\(=11^2\cdot\left(10+10^2\right)\)
\(=121\cdot110\)
\(=13310\)

\(e,5^4+5^4\cdot3+5^4\cdot6\)
\(=5^4\cdot1+5^4\cdot3+5^4\cdot6\)
\(=5^4\cdot\left(1+3+6\right)\)
\(=5^4\cdot10\)
\(=6250\)

1. parents'
2. Charles'
3. boy's
4. Peter's
5. Smiths'

ủa v hả a, bg e mới để ý, mà s bay v a :)

VIII
1. gardening
2. birdwatching
3. making pottery
4. collecting stamps
5. cooking
6. mountain climbing

1 connect
2 hobbies
3 great
4 practise
5 marks 

B
A

1 A
2 D
3 A
4 D
5 D

Giải rồi nha

e chăm để lấy mác CTV như a đấy :))

\(151-2^{91}:2^{88}+1^2\times33\)
\(=151-2^3+1\times33\)
\(=151-8+33\)
\(=176\)
mũ chứ kh phải ngũ nhse