100-10*100=
100-10+100-10+100-10+100-10=.......?
\(100-10+100-10+100-10+100-10\)
\(=\left(100-10\right)+\left(100-10\right)+\left(100-10\right)+\left(100-10\right)\)
\(=\left(100-10\right)\times4\)
\(=90\times4\)
\(=360\)
Học tốt
kết quả :360 nhé bạn
360 là đáp án đúng nhé
(1^100+2^100+...+10^100):(1^100+2^100+...+10^100)
Tính nhẩm:
a) 27 × 10 = …...; 72 × 100 =…...; 14 × 1000 =…...
86 × 10 = …...; 103 × 10 =…...; 452 × 1000 =…...
358 × 10 = …...; 1977 × 100 =…...; 300 × 1000 =…...
b) 80 : 10 = …...; 400 : 100 =…... ;6000 : 1000 =…...
300 : 10 = …...; 4000 : 100 =…... ;60000 : 1000 =…...
2000 : 10 =…...; 40000 : 100 =…... ;600000 : 1000 =…...
c) 64 × 10 =…...; 32 × 100 =…...; 95 × 1000 =…...
640 : 10 =…...; 3200 : 100 =…...; 95000 : 1000 =…...
a) 27 × 10 = 270; 72 × 100 = 7200; 14 × 1000 = 14000
86 × 10 = 860; 103 × 10 = 10300; 452 × 1000 = 452000
358 × 10 = 3580; 1977 × 100 = 197700; 300 × 1000 = 300000
b) 80 :10 = 8; 400 : 100 = 4 ;6000 : 1000 = 6
300 : 10 = 30; 4000 : 100 = 40 ; 60000 : 1000 = 60
2000 :10 = 200; 40000 :100 = 400 ;600000 : 1000 = 600
c) 64 × 10 = 640; 32 × 100 = 3200; 95 × 1000 = 95000
640 : 10 = 64; 3200 : 100 = 32; 95000 : 1000 = 95
10+100+10+100+10+100+10=?
tính nhanh:
100 + 100 + 100 + 100 x 10 + 100 x 10
100 + 100 + 100 + 100 x 10 + 100 x 10
= 100 + 100 + 100 + 1000 + 1000
= 2300
100*3=300
100*10=1000
1000*2=2000
300+2000=2300
k mk nhé sakura
100+100+100+100.10+100.10
=100+100+100+1000+1000
=300+2000
=2300
k mih nha
1005 : 1003 = ?
102 . 101 =?
500200 . 50010 =?
105 . 102 = ?
10030 . 10010 = ?
200100 : 20010 = ?
10020 . 10010 = ?
300100 . 300100 = ?
1005 : 1003 = 1002
102 . 101 = 103
500200 . 50010 = 500210
105 . 102 = 107
10030 . 10010 = 10040
200100 : 20010 = 20090
10020 . 10010 = 10030
300100 . 300100 = 300200
1005 : 1003
= 1005 - 3
= 1002
102 . 101
= 102 + 1
= 103
500200 . 50010
= 500200 + 10
= 500210
105 . 102
= 105 + 2
= 107
10030 . 10010
= 10030 + 10
= 10040
200100 : 20010
= 200100 - 10
= 200190
10020 . 10010
= 10020 + 10
= 10030
300100 .300100
= 300100 + 100
= 300200
so sánh (100^10+1)/(100^10-1) với (10^100+1)/(10^100-3)
giúp mình bài này với ạ
đặt A=100^10+1/100^10-1
B=10^100+1/10^100-3
ta có:\(A=\frac{100^{10}+1}{100^{10}-1}=\frac{100^{10}-1+2}{100^{10}-1}=\frac{100^{10}-1}{100^{10}-1}+\frac{2}{100^{10}-1}=1+\frac{2}{100^{10}-1}\)
\(B=\frac{10^{100}+1}{10^{100}-3}=\frac{10^{100}-3+4}{10^{100}-3}=\frac{10^{100}-3}{10^{100}-3}+\frac{4}{10^{100}-3}=1+\frac{4}{10^{100}-3}=1+\frac{4}{100^{10}-3}\)
vì 10010-1>10010-3
=>\(\frac{4}{100^{10}-1}<\frac{4}{100^{10}-3}\)
=>A<B
Ta có:
\(\frac{100^{10}+1}{100^{10}-1}=\frac{100^{10}-1+2}{100^{10}-1}=\frac{100^{10}-1}{100^{10}-1}+\frac{2}{100^{10}-1}=1+\frac{2}{10^{20}-1}=1+\frac{4}{2.10^{20}-2}\)
\(\frac{10^{100}+1}{10^{100}-3}=\frac{10^{100}-3+4}{10^{100}-3}=\frac{10^{100}-3}{10^{100}-3}+\frac{4}{10^{100}-3}=1+\frac{4}{10^{100}-3}=1+\frac{4}{10^{100}-3}\)
Thấy: \(2.10^{20}-2<10^{100}-3\)
\(\Rightarrow\frac{4}{2.10^{20}-1}>\frac{4}{10^{100}-3}\)
\(\Rightarrow\frac{100^{10}+1}{100^{10}-1}>\frac{10^{100}+1}{10^{100}-3}\)
10 + 10 - 10 . 10 : 10 + 20 - 20 : ......... - 100 . 100 :100 + .......... 1000 - 1000 . 1000 : 1000 = ?
Ta có:
= 10-10.10:10
= 10 - 100 : 10
= 10 - 10
= 0
Vì các số có quá trình tương tự nên kết quả là : 10 + 0 + 0 + 0 + 0 +...+ 0 = 10
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 nha
A=100^11-10/100^12-10 và B=100^10+1/100^11+1. Hãy so sánh A và B
[-2083/100 x 2/10+-917/100 x 2/10] : [247/100 x 5/10--(-353)/100 x 5/10] = ?
Tính nhanh đó