![]() ![]() This times table trick works with all answers up to 10 × 9. We think, “What do we now add to 8 to make 9?”Ĩ + 1 = 9 and so, the answer ends in a 1. We subtract 1 from 9 to find the tens digit of the answer.ĩ – 1 = 8 and so, the answer begins with a 8. We think, “What do we now add to 6 to make 9?”Ħ + 3 = 9 and so, the answer ends in a 3. We subtract 1 from 7 to find the tens digit of the answer.ħ – 1 = 6 and so, the answer begins with a 6. ![]() Here is another example of using the 9 times table trick with 7 × 9. We think, “What do we now add to 1 to make 9?” We subtract 1 from 2 to find the tens digit of the answer.Ģ – 1 = 1 and so, the answer begins with a 1. In general, we subtract 1 from the number and think what do we add to this answer to make 9?įor example, here is 2 × 9. The units digit of the answer is the digit that you add to this tens digit to make the digits of the answer add up to 9.Subtract one from this number to find the tens digit of your answer. ![]()
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