Question

Tính nhanh: a,101x25-101x11-101x14 b,108x12+25x92+13x108 c,2x169x12-3x68x8-24 d,2x56x24-3x36x16+4x12x95-6x3x8x5 MÌNH CẦN GẤP GIÚP MÌNH VỚI 👏😥

Answer 1

a, 101x25 -101x11 -101x14

= 101.(25 -11 -14) = 101.0 =0

b, 108x12 +25x92 +13x108

= 108. (12+13) + 25.92 = 108.25 + 25.92

= 25. ( 108 +92) = 25. 200 = 5000

 

Answer 2

Giải:

a) \(101.25-101.11-101.14=101.\left(24-11-14\right)=101.0=0\)  

b) \(108.12+25.92+13.108=108.\left(12+13\right)+25.92=108.25+25.92=25.\left(108+92\right)=25.200=5000\) 

c) \(2.169.12-3.68.8-24=24.169-24.68-24=24.\left(169-68-1\right)=24.100=2400\)  

d) \(2.56.24-3.36.16+4.12.95-6.3.8.5\)

\(=48.56-48.36+48.95-48.15\) 

\(=48.\left(56-36+95-15\right)\) \(=48.100\) 

\(=4800\)