Question 67
Fill in the blanks to make the statement true.
51 ÷ ___ = (- 51)
51 ÷ (-1) = (-51) [∵51−51=(−1)]
Question 51
[12×(−7)]×5= ___ × [(−7)×___ ]
Question 51 Fill in the blank to make the statement true Order of rotational symmetry of is ___.
The supplement of an acute angle is always ___ angle.
The sum of an exterior angle of a triangle and its adjacent angle is always ___.