1.5 cubic meter =( 1500 cubic decimeter

0.8 cubic meter =(800000) cubic centimeter

3.6 cubic decimeter =(3600) cubic centimeter

The side length of the cube is enlarged by 2 times, the surface area is enlarged by 4 times and the volume is enlarged by 8 times.

The surface area of a cube with a side length of 6 decimeters is (2 16 square decimeter).

The rectangle is 6m long, half wide and1.8m high. How many cubic meters is its volume?

Width = 6 ÷ 2 = 3m

Volume =6×3× 1.8=32.4 cubic meters

Its volume is 32.4 cubic meters.

The school sent 7.6 cubic meters of sand. How thick can you spread the sand in a bunker 5 meters long and 3.8 meters wide?

Thickness = 7.6÷ (5× 3.8) = 0.4m.

Five. Fill in the appropriate score

1 1 decimeter =( 1 and110) meters.

3 square decimeter =(3/ 100) square meter.

7 1 sec =( 1 and 1 1/60) minutes.

25 hours =( 1 and 1/24) days.

Six. A sand truck transports 5 tons of sand in 7 times, and each time, the transported sand quantity is evaluated as (5/7) tons.

Delta triangle is five quarters of a circle.

The circle is a triangle (5/4).

One cake is divided into three people on average, each with (1/3) pieces, two cakes with (2/3) pieces, and four cakes with (4/3) pieces.

Dissolve17g salt in100g water. What is the percentage of salt in brine?

17÷( 17+ 100)= 17/ 1 17

Answer: salt accounts for 17/ 1 17 of salt water.