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- 39 . ( 5 - 99 ) + 99 . ( 10 - 39 )
= - 39 . 5 + 39 . 99 + 99 . 10 - 99 . 39
= 39 . 99 - 99 . 39 - 39 . 5 - 99 . 39
= - 39 . 5 - 99 . 39
= 39 . ( - 5 ) - 99 . 39
= 39 . ( - 5 - 99 )
= 39 . ( - 104 )
= - 4056
![](https://rs.olm.vn/images/avt/0.png?1311)
-39.(5-99)+99.(10-39)
=-39.(-94)+99.(-29)
=-3666+(-2871)
=-3666-2871
=-6537
k cho mk nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
-39 . ( 5 - 99 ) + 99 . ( 10 - 39 )
= -39 . ( -94 ) + 99 . ( -29 )
= 3666 + ( -2871 )
= 795
\(-39.\left(5-99\right)+99.\left(10-39\right)\)
\(=\left(-39\right).\left(-94\right)+99.\left(-29\right)\)
\(=3666+\left(-2871\right)=795\)
![](https://rs.olm.vn/images/avt/0.png?1311)
-39(5-99)+99(10-39)
= (-39).5-(-39).99-99.10+99.39
= [(-39.99)-(-99.39)]+(-39.5-99.10)
= 0+(-195-990)
= 0+(-1185)
= -1185
-39(5-99)+99(10-39)
= (-39).5-(-39).99-99.10+99.39
= [(-39.99)-(-99.39)]+(-39.5-99.10)
= 0+(-195-990)
= 0+(-1185)
= -1185
![](https://rs.olm.vn/images/avt/0.png?1311)
\(-39.\left(5-99\right)+99.\left(10-39\right)\)
\(=-39.5+39.99+99.10-99.39\)
\(=-39.5+99.10+\left(39.99-99.39\right)\)
\(=-195+990+0\)
\(=795\)
CHÚC BN HỌC TỐT!!
![](https://rs.olm.vn/images/avt/0.png?1311)
-39(5 - 99) + 99(10 - 39)
= -39.5 + 39.99 + 99.10 - 99.39
= (-39.5 + 99.10) + (39.99 - 99.39)
= 5.(-39 + 99.2)
= 5.159
= 795
-38(25 - 4) + 25(-4 + 38)
= -38.25 + 38.4 - 25.4 + 25.38
= (-38.25 + 25.38) + (38.4 - 25.4)
= 4(38 - 25)
= 4.13
= 52
- 39(5 - 99) + 99(10 - 39)
= -39.5 + 39.99 + 99.10 - 99.39
= (-39.5 + 99.10) + (39.99 - 99.39)
= 5.(-39 + 99.2)
= 5.159 = 795
- 38(25 - 4) + 25(-4 + 38)
= -38.25 + 38.4 - 25.4 + 25.38
= (-38.25 + 25.38) + (38.4 - 25.4)
= 4(38 - 25)
= 4.13 = 52
![](https://rs.olm.vn/images/avt/0.png?1311)
\(-39.\left(5-99\right)+99.\left(10-39\right)\)
\(=-39.\left(-94\right)+99.\left(-29\right)\)
\(=3666+\left(-2871\right)\)
\(=795\)