450 1400 80 40
0 3.2 600 1.3
Second, choose.
1. A, C
2.B
3.B
4.C
5.C
Third, solve the problem.
1. Solution: 30× 1/6=5 (person) 30×2/5= 12 (person)
There are five students watching a movie. 12 people went to the library.
2. Solution: 36× 31=1116 (pieces)
A: You can write 1 1 16.
3. Solution: (9.2-5.2)×2=8 (kg)
9.2-8= 1.2 (kg)
A: 8 kilograms of oil; Barrel1.2kg.
Yizhiyuan
Fill the small barrel with water and pour it into the big barrel for the first time; Pour 2 kg for the second time (just full of vats); Then pour out the big bucket of water, pour the remaining 1 kg of water from the small bucket into the big bucket, and then pour in just 4 kg of water from the small bucket.