What is the missing number in (2 + _ = 7)?
(2 is addend, 7 is sum, missing number is 5)
What is the sum of (3 + 3 + 3)?
(Addends are 3, 3, and 3, sum is 9)
What is the sum of (2 + 4)?
(2 and 4 are addends, sum is 6)
What is the missing number in (5 + _ = 10)?
(5 is addend, 10 is sum, missing number is 5)
What number makes (_ + 1 = 4)?
(1 is addend, 4 is sum, missing number is 3)
What is the missing number in (1 + _ = 8)?
(1 is addend, 8 is sum, missing number is 7)
What is the missing number in (_ + 5 + 2 = 10)?
(5 and 2 are addends, 10 is sum, missing number is 3)
What number makes (_ + 3 + 2 = 9)?
(3 and 2 are addends, 9 is sum, missing number is 4)
What is the missing number in (3 + _ + 2 = 10)?
(3 and 2 are addends, 10 is sum, missing number is 5)
What is the missing number in (_ + 3 = 9)?
(3 is addend, 9 is sum, missing number is 6)
What is the sum of (1 + 6)?
(1 and 6 are addends, sum is 7)
What number makes (6 + _ = 10) true?
(6 is addend, 10 is sum, missing number is 4)
What number makes (_ + 2 = 5)?
(2 is addend, 5 is sum, missing number is 3)
What is the missing number in (4 + _ + 1 = 9)?
(4 and 1 are addends, 9 is sum, missing number is 4)
What is the sum of (0 + 3 + 5)?
(Addends are 0, 3, and 5, sum is 8)