Learn the 6 times table and division facts. 7 times table Learn the 7 times table and division facts. 9 times table Learn the 9 times table and division facts. 11 times tables Learn the 11 and 12 ...

19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...