0.8 × 100.1 간편 컴 퓨 팅 (1.25 ― 0.125) × 8 간편 컴 퓨 팅 15 규 l 0.125 간편 컴 퓨 팅

0.8 × 100.1 간편 컴 퓨 팅 (1.25 ― 0.125) × 8 간편 컴 퓨 팅 15 규 l 0.125 간편 컴 퓨 팅

0.8 × 100.1
= 0.8 × (100 + 0.1)
= 0.8 × 100 + 0.8 × 0.1
= 80 + 0.08
= 80.08
(1.25 - 0.125) × 8
= 1.25 × 8 - 0.125 × 8
= 10 - 1
= 9
15 개 내용 0.125 개
= 15 개 에 1 / 8 개
= 15 × 8
= 120