Multiplying by 8: The Eight Times Table and Doubling
1 of 15
$$ 8 \times 1 = ? $$
$$ 8 \times 1 = 8 $$
$$ 8 \times 2 = ? $$
$$ 8 \times 2 = 16 $$
$$ 8 \times 3 = ? $$
$$ 8 \times 3 = 24 $$
$$ 8 \times 4 = ? $$
$$ 8 \times 4 = 32 $$
$$ 8 \times 5 = ? $$
$$ 8 \times 5 = 40 $$
$$ 8 \times 6 = ? $$
$$ 8 \times 6 = 48 $$
$$ 8 \times 7 = ? $$
$$ 8 \times 7 = 56 $$
$$ 8 \times 8 = ? $$
$$ 8 \times 8 = 64 $$
$$ 8 \times 9 = ? $$
$$ 8 \times 9 = 72 $$
$$ 8 \times 10 = ? $$
$$ 8 \times 10 = 80 $$
$$ 8 \times 11 = ? $$
$$ 8 \times 11 = 88 $$
$$ 8 \times 12 = ? $$
$$ 8 \times 12 = 96 $$
What is the 'double, double, double' trick for multiplying by \(8\)?
To multiply a number by \(8\), you can double it three times. For example, to find \(8 \times 3\): double \(3\) is \(6\), double \(6\) is \(12\), and double \(12\) is \(24\). So \(8 \times 3 = 24\).
Use the 'double, double, double' trick to solve for \(8 \times 5\).
1. Double \(5\) is \(10\).
2. Double \(10\) is \(20\).
3. Double \(20\) is \(40\).
So, \(8 \times 5 = 40\).
How is the 8 times table related to the 4 times table?
The answers in the 8 times table are double the answers in the 4 times table. For example, \(4 \times 3 = 12\), and \(8 \times 3 = 24\). \(24\) is double \(12\).
