25 + 37 - 48 - 25 - 37
= (25 - 25) + (37 - 37) - 48
= 0 + 0 - 48
= -48
2575 + 37 - 2576 - 29
= (2575 - 2576) + (37 - 29)
= -1 + 8 = 7
34 + 35 + 36 + 37 - 14 - 15 - 16 - 17
= (34 - 14) + (35 - 15) + (36 - 16) + (37 - 17)
= 20 + 20 + 20 + 20
= 20 x 4
= 80
25+37-48-25-37=-48
2575+37-2576-29=7
34+35+36+37-14-15-16-17=80
k mk nhé
25 + 37 - 48 - 25 - 37
= (25 - 25) + (37 - 37) - 48
= 0 + 0 - 48 = -48
2575 + 37 + 2576 - 29 = 7
34 + 35 + 36 + 37 - 14 - 15 - 16 - 17
= (34 - 14) + (35 - 15) + (36 - 16) + (37 - 17)
= 20 + 20 + 20 + 20
= 20 x 4 = 80
25 + 37 - 48 - 25 - 37
= ( 25 - 25 ) + ( 37 - 37 ) - 48
= 0 + 0 - 48
= - 48
2575 + 37 - 2575 - 29
= ( 2575 - 2575 ) + ( 37 - 29 )
= 0 + 8
= 8
34 + 35 + 36 + 37 - 14 - 15 - 16 - 17
= ( 34 - 14 ) + ( 35 - 15 ) + ( 36 - 16 ) + ( 37 - 17 )
= 20 + 20 + 20 + 20
= 80
tk cho mk nha