How do I multiply two-digit numbers more easily?
How can you multiply by two-digit numbers?
Can you multiply by two-digit numbers like 14 or 37?
It looks a bit difficult, doesn't it? It can be easier if you partition the number into two parts. Instead of multiplying by 29 you can multiply by 20 and then multiply by 9 separately and then add the answers together.
Instead of multiplying by 34 you can multiply by 30 and then multiply by 4 separately and then add the answers together.
3 x 34 = ?
Split the 34 into 30 and 4.
3 x 30 = 90
3 x 4 = 12
Then add these together
90 + 12 = 102
Another strategy is to multiply by a near number that is easier to work with and then add or take away the difference.
6 x 29 = ?
It might be easier to do this as 6 x 30 = 180
Then you need to take away 6 x 1 (because 29 is 30 - 1)
6 x 1 = 6
180 - 6 = 172
Was that easier? Why not try these strategies again next time you have to multiply by two-digit numbers.