77*13+255*999+510
77×13+255×999+510. -
=1001+254745+510,255746+510,256256.
11X7X13+(255X1000-255)+510 (10+1)X51+255000-255+510 510+51+255000-255+510=255816
=1001+254745+510,255746+510,256256.
11X7X13+(255X1000-255)+510 (10+1)X51+255000-255+510 510+51+255000-255+510=255816
77×13+255×999+510 =11×7×13+255×1000-255+510 =11×91+255000-255 =1001+255000-255 =255000+746 =255746
77×13+255×999+510=1001+255×999+255×2=1001+255×(999+2)=1001+255×1001=(1+255)×1001=256×1001=256256希望对你有帮助!
77X13+255X999+510=?过程,简便算法 -
77X13+255X999+510 =1001+255*999+255*2 =1001+255*(999+2)=1001+255*1001 =1001*(1+255)=1001*256 =1000*256+256 =256256
=77×13+51×5×999+51×5×2 =77×13+51×5×(999+2)1001+51×5×1001 =1001×(1+51×5)1001×256 =256256
77X13+255X999+510 -
77×13+255×999+510 =77×13+255×999+255×2 =77×13+255×(999+2)=77×13+255×1001 =11×7×13+255×1001 =11×91+255×1001 =1001+255×1001 =1001×(255+1)=1001×256 =256256
77x13+255x999+510 =1001+255×999+255×2 =1001+255×(999+2) =1001+255×1001 =1001×(1+255) =1001×256 =1000×256+
77X13十255X999十510=? -
当时是这样算的77X13十255X999十510 =77(10+3)255(1000-1)510 =770+231+255000-255+510 =256256 验证77X13十255X999十510 =1001+254745+510 =256256 最后答案没错啊,
77×13+255×999+510 =77×(10+3)255×999+255×2 =77×10+77×3+255×(999+2)770+231+255×(1000+1)770+231+255×1000+255×1 =1001+255000+255 =256256