Question

Bài 11: Tính nhnhanh

 

A) (-4).5+15

B) (-32)+ ((-5).7

C) (-5).2+(-6).4

D) 119-(-14).10

E) 112+(-11).4

G) (-22)+(-2).6

H) (-4).4+5.(-10)

I) 99.(-5)-11.(-7)

K) (-4).2+(-2)+12

L) (-32)+(-15).(-3)

M) (-12).3+(-6).5

N) 100-(-14).(-3)

O) (-5).(-3)+(-4)^2

F) (-1)^3+(-2).(-3)

Q) (-11).(-4)-(-8.5)

S) 100-(-15).2

 

Answer 1

A)(-4)*5+15                       H)(-4)*4+5*(-10)         O) (-5) * (-3) +(-4)^2

=   (-20)+15                        = -16   + (-15)            =   15        +   16

=     -5                               =  -31                        =  31

B)(-32)+(-5) * 7                 i)99 * (-5)-11*(-7)           F) (-1)^3 +(-2) *(-3)

= (-32) + (-35)                  =-495 - (-77)                  =  -1      +  6

=  -67                              =    -572                       = 5

C)(-5) * 2 + (-6) *4             k) (-4)*2+(-2)+12          Q) (-11) * (-4) - (-8 * 5)

=  (-10)    + (-24)                  =4 * (-2) + (-2) +12       =    44       + 40

=    -34                                = (-2) *(4 +12)             = 84

D)119-(-14) *10                     = (-2) *   16                S) 100 - (-15) * 2

= 119 + 140                          = -72                           = 100 +   30

=259                              L) (-32) +(-15) * (-3)             =   130

E)112+(-11)*4                     = (-32)+   45

=112 + (-40)                       =   13

=72                                M) (-12) *3 + (-6) * 5

G)(-22)+ (-2) *6                   =   -36    +   (-30)

= (-22) + (-12)                    =-66

= -34                               N) 100- (-14) * (-3)

                                          =100 + (-42)

                                          =     58

Answer 2

Quá dài.... @@ Bạn tách riêng ra mình làm

Answer 3

10.5   - 37.7    -11.6     113.1   100.6   - 24.6    ...