1. Right and wrong.

2.0. 1m-3cm -3.5 degrees -5 years old

Answer: 1200 yuan means income 1200 yuan.

4.( 1) Answer: Move to the left 12m should be-12m.

(2) Answer: "8 meters" means moving 8 meters to the right.

5. A: It means 392 meters below sea level.

6. Positive number: 0.05, 0.25 of 65438+7.

Negative numbers:-18, 9 of-13.

Integer:-18,0,25

5.2

1. No, no.

2.- 15 2/3-3.2 the origin is 7.5 to the left

3.7 2.4 2 and 2/3

leave out

5.-2

Hand over 30 points in 3 days