Toán Lớp 6: Thực hiện phép tính:
( -15 ) – ( -16 )=
( -4) . 7 =
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Toán Lớp 6: Thực hiện phép tính:
( -15 ) – ( -16 )=
( -4) . 7 =
Comments ( 2 )
( -15 ) – ( -16 )
= 1
( -4) . 7
= – 28
(-15)-(-16)
=-15+16
=16-15
=1
(-4).7
=-(4.7)
=-28