Grade 5 math problems, desperate for help

pi*(6/2)^2*12=108pi=

How much does a soda weigh per milliliter? No way! I guess so.

1049-0781 = 268 (degrees).

200* yuan).

4*4+2/2=8(cm^2)

This is an isosceles right triangle)

2^3*3=24(dm^3)

2^2*14=56(dm^2)

1.How many milliliters of soda can be filled in a cylindrical can with a diameter of 6 cm and a height of 12 cm? ml 2If a kilogram of soda per milliliter weighs, how many grams can it contain? 373 grams.

2.The method for collecting electricity charges in a certain place is as follows: if the monthly electricity consumption is within 200 kWh (including 200 kWh), each kWh of electricity will be charged; If the monthly electricity consumption exceeds 200 kWh, the excess part will be discounted by RMB per kWh.

Xiaoqiang's electricity situation in July is 0781 on June 30, and 1049 on July 31, how much is the electricity bill payable by his family in July?

3.The degree ratio of the three corners of a triangle is 1:1:2, the larger angle is ( ) degrees, and if the shorter side is 4 cm long, the area of this triangle is ( ) square centimeters.

4.Use the cubes secreted by three edges to form a cuboid. The volume of this cuboid is ( ) cubic decimeters and the surface area is ( ) square decimeters.

1 base area times height: 6 times 12 = 72 72 divided by approximately equals.

7 people can report multiples of 8.

Because 8 7 = 1 ......1，16÷7=2……2，……If the cycle goes on like this, it doesn't increase the multiple of 8, but the next person will report it, so everyone can take turns.

All 7 people report multiples of eight, because 8 7 is more than one, and so on.

Because 7 -1 (mod8).

So all of them can be turned to.

All children can report multiples of 8. 7 people are not divisible by 8 and the remaining 1 is exactly the same cycle.

29 + 21 + 25 - 45 = 30 (people).

17 + 15 + 10 - 30 = 12 (people).

Original. Anti-counterfeiting mark: 865414143

The area of the canal is equal to the sum of the areas of the two small parallelograms and is:

Square meter parallelogram land area:

150 120 = 1500 square meters.

Available area: 1500-288=1212 square meters.