1.   Solve __ + 8 = 10.
    A. 2 B. 4
    C. 8 D. 18
    Hint
  2.   Use the number sentence 5 + 8 +  = 24 to find out how many pages Raul wrote on the weekend.

DayNumber of Pages
Friday5
Saturday8
Sunday
    A. 11 B. 12
    C. 10 D. 9
    Hint
  3.   Find the value of the expression if m = 4.

16 − m

    A. 20 B. 12
    C. 48 D. 8
    Hint
  4.   Find the value of the expression if m = 4.

9 − (m + 2)

    A. 7 B. 5
    C. 15 D. 3
    Hint
  5.   Solve 18 − d = 5 mentally.
    A. d = 23 B. d = 5
    C. d = 13 D. d = 8
    Hint
  6.   Hiroshi scored 7 points in the first half of a football game. At the end of the game, he had scored a total of 21 points. Let n = the number of points he scored in the second half. Write an equation to find how many points he scored in the second half.
    A. n − 21 = 7 B. 7 − n = 21
    C. n = 21 + 7 D. 7 + n = 21
    Hint
  7.   Find the next three numbers in the pattern.

Input (j)484236302418
Output (k)544842
    A. 38, 34, 30 B. 48, 54, 60
    C. 36, 30, 24 D. 34, 26, 14
    Hint
  8.   Find the next three numbers in the pattern.

Input (r)102030405060
Output (s)110120130
    A. 120, 110, 100 B. 140, 150, 160
    C. 135, 140, 145 D. 140, 160, 180
    Hint
  9.   Find the missing number in the equation.

__ + 10 = 10 + 15
    A. 25 B. 5
    C. 10 D. 15
    Hint
  10.   Find the missing number in the equation.

8 + 5 + 7 = 8 + 7 + __
    A. 7 B. 6
    C. 5 D. 15
    Hint