hoac sai vi tui moi lop 3

honh phai

11nhan11

22nhan22

33nhan33

co hong phai nhu the

* la dau nhan

: la dau cach giua cac phep thinh

11x11=121

22x22=484

33x33=1089

44x44=1936

55x55=3025

66x66=4356

k mk nhé,1000000%  đúng

11 x 11 = 121

22 x 22 = 484

33 x 33 = 1089

44 x 44 = 1936

55 x 55 = 3025

66 x 66 = 3356

11 x 11 = 121

22 x 22 = 484

33 x 33 = 1089

44 x 44 = 1936

55 x 55 = 3025

66 x 66 = 4356

12+x=43

      x=43-12

      x=31

x+33=55

       x=55-33

       x=22

44+x=63

      x=63-44

      x=19

k mik nha đúng100%

\(12+x=43\)

\(x=43-12\)

\(=31\)

\(x+33=55\)

\(x=55-33\)

\(x=22\)

\(44+x=63\)

\(x=19\)

1, 12 + x = 43

            x = 43 - 12

            x = 31

2, x + 33 = 55

    x         = 55 - 33 

    x         = 22

3, 44 + x = 63

            x = 63 - 44

            x = 19

a. 11 x11= 121 ; 22 x 22=484 , b.44 x 44 = 1936 ; 55 x 55 = 3025

a, 121

b, 484

c, 1089

d, 1936

e, 3025

HT và $$$

a) 121

    484

b) 1089

    1936

    3025

@Nghệ Mạt

#cua

22 + 33 = 55 

Duyệt mình nha

22 + 33 = 55

22+33=55

duyet nha

(45+75)*66+(75+45)*34

=(45+75)*(66+34)

=120*100

=12000

11+22+33+44+55+66+77+88+99:11

=11+22+33+44+55+66+77+88+9

=(11+9)+(22+88)+(33+77)+(44+66)+55

=20+110*3+55

=20+330+55

=405

Ta có :

a, (45 + 75) x 66 + (75 + 45) x 34

=  (45 + 75) x (66 + 34)

=   120  x 100

=  12000

11 + 22 + 33 + 44 + 55 + 66 + 77 + 88 + 99 : 11

= 33 + 77 + 121 + 165 + 9

= 405

\(11+22+33+44+55+66+77+88+99:11\)

\(\left(11+99\right)+\left(22+88\right)+\left(33+77\right)+\left(44+66\right)+55:11\)

\(110+110+110+110+55:11\)

\(440+55:11\)

\(445\)

\(5^{20}:\left(5^{15}\times15+5^{15}\times10\right)=5^{20}:\left[5^{15}\left(15+10\right)\right]=5^{20}:\left(5^{15}.25\right)=5^{20}:\left(5^{15}.5^2\right)=5^{20}:5^{17}=5^3=125\)

\(33.\left(-55\right)+\left(-33\right).44-33=33.\left(-55\right)+33.\left(-44\right)-33=33\left[\left(-55\right)+\left(-44\right)-1\right]=33.\left(-100\right)=-3300\)

Đề bài yêu cầu gì đó em?