¯¯ = 5 × 19 × 2 = 10 × 2٫38 12-4 = 23٫4 × 100 = 25 × 83 × 4 : ≈ 7 × 30٫2 :1 501 45 = 60 × 3 000 682× 39× = 1 000 × 0٫96 1,04 17,2 :2 21٫3× 6٫5× ≈ 29 × 816 = 18 4 × 2 2 U = 0 01 × 2 7 :3 168 8× 25 0٫03× = 12 × 26 94