Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)Question 1:A classroom is 6.5 meters long and 4.2 meters wide. What is its area? Answer: Its area is ................................ (Write your answer by decimal in the simplest form)Question 2:The area of the trapezoid below is .........................Question 3:What is 50% of 824?Answer: .........................................Question 4:The perimeter...
Đọc tiếp
Fill in the blank with the suitable number (Note: write decimal number with "the dot" between number part and fraction part. Example: 0.5)
Question 1:
A classroom is 6.5 meters long and 4.2 meters wide. What is its area?
Answer: Its area is ................................ 
(Write your answer by decimal in the simplest form)
Question 2:
The area of the trapezoid below is .........................
Question 3:
What is 50% of 824?
Answer: .........................................
Question 4:
The perimeter of the circle is ...........................cm
(Write your answer by decimal in the simplest form)
Question 5:
45% of M is 72. The value of M is ............................
Question 6:
A car traveled at a constant speed for 5 hours, covering a total distance of 301km. How far did the car travel for one hour?
(Write your answer by decimal in simplest form)
Answer: .............................
Question 7:
The perimeter of a rectangular land is 90m. Its length is 7m longer than its width. The area of this land is ..................
Question 8:
The value of m is ..........................
Question 9:
Anna multiply together the following numbers
How many zeros are there at the end of the product?
Answer: There are ................... zeros.
Question 10:
If 
and n is a natural number then n = ..........................
Half the circumference of the land is:
90:2=45 {cm}
Land width is:
{45-7}:2=19 {cm}
Length land is:
19+7=26 {cm}
Area of this land is:
26x19=494 {\(cm^2\)}
Đ/S:494\(cm^2\)