There is a relationship between the $10$10 times tables and the $5$5 times tables.
Can you solve this problem? Can you then find half of the answer?
Let's look at how to multiply numbers by $10$10.
Similar to how we can use a doubling strategy for our $2,4$2,4 and $8$8 times tables, we can use a halving strategy for our $5$5 times tables because half of $10$10 groups is $5$5 groups. Watch this video to see how.
You can also reverse this strategy and double the answers to $5$5 times tables to work out the answers to the $10$10 times tables.
Recall multiplication facts up to 10 × 10 and related division facts