1 Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
These numbers form an addition and subtraction fact family:
9, 18
Complete the fact family formed by using these numbers.
Addition facts
Subtraction facts
+ 9 =
- 9 =
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Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares

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