x+32-54=98
x+32=98+54
x+32=152
x=152-32
x=120
X + 32 - 54 = 98
X + 32 = 98 + 54
X + 32 = 152
X = 152 - 32
X = 120.
x+ 32 = 98+ 54
x + 32 = 152
x = 152 - 32
x = 120
x+32-54=98
x+32 =98+54
x+32 =152
x = 152-32
x = 120
x+32-54=98
x+32=98+54
x+32=152
x=152-32
x=120
X + 32 - 54 = 98
X + 32 = 98 + 54
X + 32 = 152
X = 152 - 32
X = 120.
x+ 32 = 98+ 54
x + 32 = 152
x = 152 - 32
x = 120
x+32-54=98
x+32 =98+54
x+32 =152
x = 152-32
x = 120
tim x
x+23=98
x-32=89
18 - 35 + 98 - 97 + 54 - 98 - 98 + 65 - 89 + 12 - 43 + 89 + 98
90+67+54+23+87+98+14+78+46+28=?
tính nhanh:
1 + 3 + 5 + 7 + 9 + 100 + 98 +77 +54 +60 +18 =
98+32=????
Tính:
a) 54 : 3 68 : 4 84 : 6 90 : 2
......... ........... .......... ...........
......... ........... .......... ...........
......... ........... .......... ...........
b) 98 : 3 89 : 2 87 : 4 79 : 7
......... ........... .......... ...........
......... ........... .......... ...........
......... ........... .......... ...........
tim x
14 16 31 32 100 x
2 8 2 20 54 6
32+x=54+12
54-45-34-43-23-32