1, expressed in letters: the distribution law of multiplication (), the area formula of trapezoid ().

2, 3.584 about one decimal place (); Keep two decimal places is about (); Keep whole

The quantity is about ().

The product of 3.7.6×0.43 is a decimal (), and the quotient of 19÷34 has two decimal places ().

4、460×0.29=46×( ) 3.578÷0.56=( )÷56

The product of two factors is 6.38. If one factor is magnified 5 times and the other factor is magnified 10 times,

The product is ().

There are 58 tons of goods in the warehouse, and six cars have been sent, each with one ton. This formula represents the goods in the warehouse now.

Things are () tons; When a = 8, the current cargo is () tons.

7. The area of a triangle is 24 square centimeters, and its base is 8 centimeters.

The height of the bottom of the strip is () cm.

8.58 kilograms of peanuts can squeeze out 29 kilograms of oil. According to this calculation, every kilogram of peanuts can squeeze out () kilograms of oil.

9. The base of a parallelogram is 6.4 meters, the height is 2.5 meters, and the area of a triangle with equal base and equal height is

() square meters.

10, put >,