分数乘除法简便计算7 13855182 1（-）60(+)18(-)（+） 51251896952058 42716737（ +）276 （+）- 1.311.61.61.39 2718 305135139 11.618.4 95 + 7+521213552234 5578873377634655 243412(-)61825351369434134 1025 83 2.5（ +）7 558557482 18 433(+)79（+） 54（ +）273 99 +792059 27554755 16 2154714（-1）5 12598751371252 4 36 （27）7101-757554183010108812+101 787766101-6361010131310077123215214（7 -）（ +） 251-（125 34）635 25142517164122 295+（5 -）+2824663510102714 7 - 71.3111.399331923 +13 1355442 32133 2（+） 20 8312（ -）（ +4 ） 25（ +） 22083655 2527277 1556 5（+）30（+）（-）6017 +12+18 3018 30125995 13+ 52 20+ 2662 2 5 773313 13510633153616 22119+（-）（+ ） 6442481569 3357 5343 17134312（+）（ +）（ +）355 2464174257754 6 3 655513 332134+ + + 713 71369964 5453554 6 3 63743+3 30.921.410.928.597137138111188 4521732 5543279271425545 7137854615211(54)7657947252451212-“”“”At the end, Xiao Bian gives you a passage. Minand once said, people who learn to learn are very happy people. In every wonderful life, learning is an eternal theme. As a professional clerical and teaching position, I understand the importance of continuous learning, life is diligent, nothing can be gained, only continuous learning can achieve better self. Only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of the market. This document is also edited by my studio professionals, there may be errors in the document, if there are errors, please correct, thank you!