1. What is the missing number? 5745 + (3856 + 7464) = (                 + 3856) + 7464   5745   0   7464   9601   Hint Half-n-half Clue   2. What is the missing number? 234 + 673 =               + 234   0   234   907   673   Half-n-half Clue   3. Which equation shows the associative property of addition?   k + l = l + m   i + j = j + i   m + (n + o) = (m + n) + o   k = 0 + k   Half-n-half Clue   4. Which equation shows the identity property of addition?   a + b = b + c   r + s = s + t   i + 0 = i   a + (b + c) = (a + b) + c   Half-n-half Clue   5. Which property of addition is represented by the following equation? p + q = q + p   associative   commutative   identity   Half-n-half Clue   6. What is the missing number? 123 + (456 + 789) = (                 + 456) + 789   789   0   456   123   Half-n-half Clue   7. Which equation shows the commutative property of addition?   0 + k = k   p + q = q + p   h = h + 0   p + (q + r) = (p + q) + r   Half-n-half Clue