B)\(\frac{5932+6001×3932}{5932+6001-69}\)
5932 + 6001 x 5931
________________ =
5932 x 6001 - 69
\(\dfrac{5932+6001x5931}{5932x600-69}=\dfrac{5932+6001x\left(5932-1\right)}{5932x6001-69}=\dfrac{5932+6001x5932-6001}{5932x6001-69}=\dfrac{5932x6001-\left(6001-5932\right)}{5932x6001-69}=\dfrac{5932x6001-69}{5932x6001-69}=1\)
Tính nhanh:
5932 + 6001 x 5931/5932 x 6001 - 69
\(=\dfrac{5931+6001\cdot5931+1}{5931\cdot6001+6001-69}\)
\(=\dfrac{5931\cdot6001+5932}{5931\cdot6001+5932}=1\)
ryt gon phep tinh 5932 + 6001 nhan 5931 phan 5932 nhan 6001 - 69
\(\frac{5932+6001\times5931}{5932\times6001-69}=\frac{5932+6001\times5931}{5931\times6001+6001-69}=\frac{5932+6001\times5931}{5931\times6001+5932}=1\)
câu 1 : 1997,1997 + 1998,1998 +1999,1999
câu2 : 5932+ 6001 x 5931/5932 x 6001 - 69
câu 1: 1997,1997+1998,1988+1999,1999=5994,5994
câu 2: 5932+6001x5931/5932x6001-69=360117932
tck mình nha
Tính nhanh
a,254 x 399 - 145/ 254 + 399 x 253
b,5932 + 6001 x 5931 / 5932 x 6001 - 69
Tính nhanh:
a) \(\frac{254.399-145}{254+399.253}\)
\(=\)\(\frac{\left(253+1\right).399-145}{254+399.253}\)
\(=\)\(\frac{253.399+399-145}{254+399.253}\)
\(=\)\(\frac{253.399+254}{254+399.253}\)
\(=\)\(1\)
b) \(\frac{5932+6001.5931}{5932.6001-69}\)
\(=\)\(\frac{5932+6001.5931}{\left(5931+1\right).6001-69}\)
\(=\)\(\frac{5932+6001.5931}{5931.6001+6001-69}\)
\(=\)\(\frac{5932+6001.5931}{5932.6001+5932}\)
\(=\)\(1\)
a, 254 x 399 - 145/254 + 399 x 253
b, 5932 + 6001 x 5931/5932 x 6001 - 69
\(\frac{5932+6001\times5931}{5932\times6001-69}\)
Tính nhanh \(A=\frac{5932+6001\times5931}{5932\times6001-69}\)
tính nhanh: \(\frac{5932+6001\times5931}{5932\times6001-69}\)
\(A=\frac{5932+6001.5931}{5932.6001-69}=\frac{5932+6001.5931}{5931.6001+6001-69}=\frac{5932+6001.5931}{5931.6001+5932}=1\)
5932+6001x5931/5932x6001-69
= 5932+6001x5931/(5931+1)x6001-69
=5932+6001x5931/ 5931x6001+6001- 69
= 5932+6001x5931/5931x6001+5932