1.25+4.35.65 8.5-1.487.12 2.5kg2kg80g
16.7- 5.8+4.216.7-(5.8+4.2) 395-197395-200+3
9.36+1.7411 7.2-3.86+2.537.2+2.53-3.86
98.27-0.9998 10米6分米10.06米