157 divided by 157 and 157 points 158. Please indicate where 159 comes from and where it belongs to you. answer

The name of the final examination paper of the tenth volume of primary school mathematics scores 1. Fill in the blank: (1, 24) 1, 10-20, where () is an odd number and a composite number, the prime factor is (). 2. Cut the 2-meter-long iron wire into 5 segments on average, each segment accounting for the whole length, and each segment is () meters long. 3. The decimal unit of1is (), and it has () such units. The sum of such units () is equal to the smallest prime number. 4. Fill in the appropriate simplest score in (). 40 square decimeter = () square meter 3 hours 40 minutes = () 6 hours = () 8 kilometers 500 meters = () kilometers 5,8, 16,32,40, the number divisible by 16 is (), divisible by16. 6, 4 ÷ 5 = = () Decimal 7, A ÷ B = 4 (A and B are both natural numbers), the greatest common divisor of A and B is (), and the smallest common multiple is (). 8.+ means () plus (), and the total is (). 9. The side length of a cube is 6 cm, the surface area is () and the volume is (). Second, true or false questions (1, 5 points for each question) 1, a natural number is either a prime number or a composite number. 4, A and B are all natural numbers that are not equal to 0. If A > B, then