Class name score
1, according to the law: 3, 5, 9, 17, 33, (), 129.
2. The sum of numbers A, B and C is 1 120. A is twice that of B, B is twice that of C, and the number of A is ().
3. There are many iron pipes, the bottom layer is 10, and the penultimate layer is 9. Every other floor, there is one less iron pipe. If the top layer is 1, there are () iron pipes.
Three cats ate three mice in three days. With this efficiency, nine cats can eat () mice in nine days.
5、 1537×788-937×788- 1537×2 12+937×2 12=( )
6. Dad is 26 years older than Xiao. Next year, my father will be three times as old as Xiao Qiang, and Xiao Qiang will be () years old this year.
Xiao Ming took part in the Olympic Mathematics Competition, and one of the 20 questions got 5 points. Not only did he fail to score the wrong question, but he also deducted 3 points. Xiao Ming gave * * * 60 points, and he answered a question correctly ().
8, a number plus 5, multiplied by 5, minus 5, divided by 5, the result is equal to 5, then this number is ().
9. When Xiaohong was doing the addition test, due to carelessness, she took 5 in her unit as 9 and 8 in the tenth as 3. The result is 123 and the correct answer is ().
10. A car is equipped with four tires and 1 spare tire. The driver rotates the five tires appropriately so that each tire has the same stroke. This car has traveled 3200 kilometers. Each tire traveled an average of 100 km.
1 1.27 table tennis, 1 is only defective, and the defective products are relatively light. Now that you have a balance, you have to weigh it at least () times. We must find the defective ones.
12, if the sum of five consecutive natural numbers is 465, then the sum of the next five consecutive natural numbers is ().
13, the following figure is a square with a circumference of 64 cm, which is divided into four small rectangles on average, and the circumference of the small rectangle is () cm.
14. Cut a rope with a length of 169 cm into a length of 13 cm and cut it with a knife ().
15, the left * * * has () triangles.
16, Xiao Wang, Xiao Zhang and Xiao Li participated in the 60-meter race. Competition results: Xiao Wang is not the third, Xiao Zhang is faster than Xiao Li, and Xiao Li is the first ().
17, a cuboid tofu, only allowed to be cut three times, and can be cut into () pieces at most.
18, ★ = ○ ○ = □□□□ = △△★ = () △
19 and 18 are multiplied by 2, and the final number of the product is ().
20. Among the students who participated in the fourth-grade math competition, the number of boys who won the prize was 2 more than that of girls, and the number of girls who won the prize was half that of boys, and () people won the prize.