123-76=47
56-51=5
78-56=22
56-7x5=21
53-23=30
42:2=21
chúc bạn học giỏi hơn
tk mình nha
123-76=47 : 56-51=5 : 78-56=22
56-(7x5)
56-35=21 : 53-23=30 : 42 :2=21
\(123-76=47\)
\(56-51=5\)
\(78-56=22\)
\(56-7\times5=21\)
\(53-23=30\)
\(42:2=41\)
123 - 76
= 47
56 - 51
= 5
78 - 56
= 22
56 - 7 x 5
= 21
53 - 23
= 30
42 : 2
= 21
123 - 76
= 47
56 - 51
= 5
78 - 56
= 22
56 - 7 x 5
= 21
53 - 23
= 30
42 : 2
= 21
123-76=47
56-51=5
78-56=22
56-7x5=56-35=21
53-23=30
42:2=21
