# 4Multiple Choice910×8\frac{9}{10}\times8109×8=6256\frac256527157\frac1575168458\frac45854
# 5Multiple Choice1112×9\frac{11}{12}\times91211×9=7147\frac147418148\frac1484197347\frac34743
# 7Multiple Choice1315×12\frac{13}{15}\times121513×12=103510\frac3510531211102510\frac251052
# 8Multiple Choice712×15\frac{7}{12}\times15127×15=3143\frac1434198348\frac348439149\frac14941
# 9Multiple Choice514\frac{5}{14}145×\times×21=7127\frac127216126\frac12621108
# 10Multiple Choice1720×8\frac{17}{20}\times82017×8=5455\frac455546456\frac4565477157\frac15751