2 18 divided by (45 )= 15 (6 )=0.4=( 40 )%= (4).

In a math problem, 46 people in the class did it right and 4 people did it wrong, and the correct rate was (92%).

The original price of a microwave oven was 800 yuan, and now it's 10% off, which is (80) yuan cheaper.

5 In 1, 0.333, 33% and 0.3, the maximum number is (1) and the minimum number is (0.3).

The product of 6 numerator and denominator is 24. There are (2) simplest true fractions whose sum is (5/ 12).

7 Divide the 3m-long body into 5 segments on average, each segment is (5) of the total length (1) and (5) of (3) meters.

Divide a circle with a radius of 8 cm into several parts, then cut it and put it together (as shown below). The perimeter of the mosaic is (16) cm longer than that of the original circle.

According to the requirements, draw pictures first and then fill in the blanks.

The picture on the right is a rectangle. First shorten its length to 3/5, then reduce its width to 2/3, and the area of the new rectangle is 2/5.

10 has 10 bicycles and tricycles with 26 wheels. There are (4) bicycles and (6) tricycles.

1 1 In the figure on the right, the square area is12cm2 and the circular area is (37.68).

The teacher taught right, and it must be right!