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Multiplication - Trick - 3

Can you do this?

Fill in the gaps.

21 x 9 = 189 18 9 18 + 9 = 27
22 x 9 = 19    19 8 __ + 8 = 27
23 x 9 = 20    20 __ + 7 = 27
24 x 9 = ___ 21 + __ = 27
25 x 9 = ___ 22 + __ = 27
26 x 9 = ___ 23 __ + 4 = 27
27 x 9 = ___ 24 __ + 3 = 27
28 x 9 = ___ 25 + __ = 27
29 x 9 = ___ 26 26 + __ = 27
30 x 9 = 270 27 0 27 + 0   = 27

Do you know this magic?

21 x 9 = 189.     18 + 9 = 27.     21 through 30 x 9 = gives the number whose first two digits plus last digit always makes 27.

Can you find out the total for 31 x 9 through 40 x 9?

GREAT!!!

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