3.
a, 45
b,33. 53
4.
a, 39
b, 58
c,22
k nha
3.
a) 4.4.4.4.4 = 45
b) 3.3.3.5.5.5 = 33 . 53
4.
a) 35 . 34 = 39
b) 53 . 55 = 58
c) 22
Hk tốt
3, a, 45
b, 33 . 55
4, a, 35 . 34 = 35+4 = 39
b, 53 . 55 = 53+5 = 58
a)4.4.4.4.4 = 45
b)3.3.3.5.5.5 =33.53
4.
35.34=35+4= 39
53.55 =53+5 = 58
22.2=22+1=23
chuc ban hoc tot