24 nha bn.

Bài 1: Tính:

a) (325+175) - (47+53)

= 500-100=400.

b) (756-217) - (183-53)

= 539-150= 389.

c) (-5).(-2).6.7

= 10.42=420

d) 24.36- (-24).64

= 864- (-1536)

= 2400.

Tick mk nha bn!!!!!

D;A;C;C

1. with/ on / to.

2/ on.

3/ in.

4/ with.

5/ by.

6/ in.

7/ to.

1/ goes.

2/ are.

3/ is coming; is.