a) P = 53,2 : (7,5 - 3,5) + 45,8

    P = 53,2 : 4 + 45,8

    P = 13,3 + 45,8

    P = 59,1

a, a= 1996.1998+2.1998

    b= 1996.1998+2.1996

    vì 2.1998 lớn hơn 2.1996 nên a lớn hơn b

b,làm tương tự nhé

k cho tui với

a) A = 1998 . 1998

= ( 1996 + 2 ) 1998 

= 1996 . 1998 + 2 . 1998 

B = 1996 . 2000

= 1996 ( 1998 + 2 )

= 1996 . 1998 + 1996 . 2

Vì 1996 . 1998 + 2 . 1998 > 1996 . 1998 + 1996 . 2 nên A > B .

b) A = 2000 . 2000 

= ( 1990 + 10 ) 2000

= 1990 . 2000 + 10 . 2000

B = 1990 . 2010 

= 1990 ( 2000 + 10 )

= 1990 . 2000 + 1990 . 10

Vì 1990 . 2000 + 10 . 2000 > 1990 . 10 nên A > B

a/ 53.39+47.39-53:21+47.21=488447619

b/2.53.12+4.6.87-3.8.40=6860208

c/5.7.77-7.60+49.25-15.42=2870

dễ mà , bạn.

Bạn giải giúp mình với

ai giúp minhf sẽ đươc 1 k

Bài 3. change these sentences into negative and interrogative form

1. she was tired last night.

-->She wasn't tired last night

2.I was in London last month.

-->I wasn't in London last month

3. they were at nina's house yesterday

-->They weren't at Nina's house yesterday

4. she was with him yesterday

-->She wasn't with him yesterday

5. Tom was at school last Monday

-->Tom wasn't at school last Monday

8056

Mk ko biết bn ấy

K mk nhé

*Mio*

Có cái bn đấy ban nãy cho mk 3 sai mặc dù mk ko trả lời linh tinh

41.43+86.29+43

=43.(41+1) + 86.29

=43.42+86.29

=1806+2494=4300

\(1763+2494+43=4300\)

A) 17/23

B) 193/197

K mk nhé

*Mio*

a) \(\frac{171717}{232323}=\frac{17}{23}\)

b) \(\frac{193193193}{197197197}=\frac{193}{197}\)

#

đáp án cuối cùng của tôi là : A . 0,5

A.0.5 nha ban

Chuc ban hoc tot