(È) ¯ 902 253 : 4 3 5× 1 7× :1 5 74 6× 3,75 4,08 1٫5 2,9× 8× 0٫03× : 2 = 5 × 213 = 709 × 6 6×Õ 5 :3 48 7 9÷ 6 45 9 7 36 154