Current location - Training Enrollment Network - Mathematics courses - The classroom decorated in Grade Three is 9 meters long and 5 meters wide. If a square floor tile with an area of 5 square decimeters is used to lay the classroom area.
The classroom decorated in Grade Three is 9 meters long and 5 meters wide. If a square floor tile with an area of 5 square decimeters is used to lay the classroom area.
1, classroom area: 9 * 5 = 45m2.

Floor tile area: 30*30=900 cm2 =0.09 m2.

45/0.09=500 (square)

It needs at least 500 yuan.

2. Living room area: 6*4=24 square meters.

Floor tile area: 2*2=4 square decimeter =0.04 square meter.

24/0.04=600 (block)

Need 600 yuan