Question

[ɢeuᴍ ℑĬŊ ƳᗩᑎǤ ᕼồ]

Tính nhanh :

9 x 4 x 101 + 108 x 21 – 64 x 36 

Answer 1

[Kiều Vũ Linh]

9 × 4 × 101 + 108 × 21 - 64 × 36

= 36 × 101 + 36 × 3 × 21 - 64 × 36

= 36 × (101 + 3 × 21 - 64)

= 36 × (101 + 63 - 64)

= 36 × 100

= 3600