问题 解答题 口算.25×7×4=500×60=30×6=35×2×5=32×30=900÷30=24×5=299+212+288= 答案 25×7×4=700,500×60=30000,30×6=180,35×2×5=350,32×30=960,900÷30=30,24×5=120,299+212+288=799.故答案为:700,30000,180,350,960,30,120,799.