1) 650×(1200+800) = 650×2000 = 1,300,000
2) 156×200+200×144 = 31,200 + 28,800 = 60,000
3) 1250×(15×80) = 1250×1200 = 1,500,000
1) 650×(1200+800) = 650×2000 = 1,300,000
2) 156×200+200×144 = 31,200 + 28,800 = 60,000
3) 1250×(15×80) = 1250×1200 = 1,500,000