Dr Nic explains how place-value works and specifically how to multiply by numbers like 20, 40, 70.
0:00 Introduction
0:27 Place value
1:36 Multiplying by ten
2:14 Multiplying by a multiple of ten
3:11 Practice examples (and answers)
3:44 Multiplying two multiples of ten
4:15 Practice examples
5:00 Credits
See [ Ссылка ] for all of Dr Nic's videos organised by topic.
