600 + 1000 = 1600
600 + 400 = 1000
new £750-1000, used maybe £450-600
(600 ÷ 4) × 3 = 450
GCF(750 g, 600 g, 1.05 kg) = GCF(750, 600, 1050) grams = 150 g.
450 is half way between 300 and 600.
3 over 4 of 600 = 450= 3/4 * 600= 0.75 * 600= 450
450% of 600 is 600 × 450 ÷ 100 = 2700.
550
450 is 75 percent of 600.
1000-450 equal to = 550
75%