Grade 5 problem

Counting · Grade 5

Two distinguishable six-sided dice are rolled. In how many ways can the sum of the numbers drawn be equal to 7?

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  1. The first die can show a number from 1 to 6.
  2. For each value of the first die, find the complement of 7.
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Answer: 6

The ordered pairs (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) are suitable: six.

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