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Question
Bob bought 3 toys at 17 bucks each. The total cost of the toys is
Bob bought 3 toys at 17 bucks each. The total cost of the toys is
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Solution
The correct option is A 51
Cost of 1 toy = 17 bucks
Cost of 3 toys = 3 x 17 bucks
We split 17 as 10 and 7 and multiply 3 by 10 and 7.
17 = 10 + 7
3 x 10 = 30
3 x 7 = 21
30 + 21 = 51
Thus, 3 x 17 = 3 x 10 + 3 x 7 = 51.
Cost of 1 toy = 17 bucks
Cost of 3 toys = 3 x 17 bucks
We split 17 as 10 and 7 and multiply 3 by 10 and 7.
17 = 10 + 7
3 x 10 = 30
3 x 7 = 21
30 + 21 = 51
Thus, 3 x 17 = 3 x 10 + 3 x 7 = 51.
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