101×9595×1简算
95×101-951的简便运算? -
将101分解为100+1;951分解为950+1 95×101-951 =95×(100+1)-(950+1)=9500+95-950-1 =(9500-950)+95-1 =950×(10-1)+94 =8550+94 =8644
95×101+0.95 =95×100+95+0.95 =9500+95+0.95 =9595.95
将101分解为100+1;951分解为950+1 95×101-951 =95×(100+1)-(950+1)=9500+95-950-1 =(9500-950)+95-1 =950×(10-1)+94 =8550+94 =8644
95×101+0.95 =95×100+95+0.95 =9500+95+0.95 =9595.95
=(95+9595)(59+1)5960 =3790