【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《小学数学竞赛选拔赛初赛试题》,欢迎阅读!
小学数学竞赛选拔赛初赛试题 第 一 试(考试时间60分钟) 计算题(只需写出答案,每题5分,共100分) 1. 0.1255.57165= 2. 1+11+111+1111+11111+111111+1111111+11111111+111111111+1111111111 = 3. (1+0.37+0.64)(0.37+0.64+1.25) - (1+0.37+0.64+1.25)(0.37+0.64) = 4. 35.77.3+137.25+4820.27= 5. 371999125168= 6. 84181319.375107= 191987. 123456789101112979899100101 = 8. 56789+67895+78956+89567+95678= 9. 227(1)3312= 2(0.25)16723210. [14.8(31.5)1]8= 72551 11. 1.44770.0003119.816102.5361.14= 12. 91.3+88.8+90.2+270.4+89.8+186.8+91.7= 13. 6.258.3716+3.750.8378= 410.271.2525814. = 1118.25532515. 199920002000200120012001200119991999200020002000 = 111116. 2000(1)(1)(1)(1)= 2341001111111117. (1)(1)(1)(1)(1)(1)(1)(1)22339999100100= 123246714219182718. = 1352610721359274519. 23.4246.840.53781.250.537846.840.75846.840.1250.5378= 20. (1 19191919)(12)(13)(115)= 929292922 本文来源:https://www.dywdw.cn/c78f0730b307e87100f69621.html