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Grade 5 Math · Level 1, Place Value & Powers of 10

Place Value Relationships

How the lesson starts: Place Value Relationships

1. Nia's number lab

   Hi there! Meet Nia, the inventor. Her number machine reads big numbers like 73,646. Every digit sits in its own place, and the place tells us what the digit is worth. Let's switch the machine on!

2. Each place is 10 times bigger

   Here is the machine's place ladder. Ones, tens, hundreds, thousands. Each place is 10 times the place to its right. Then come the tenths, the hundredths, the thousandths. Each one is 10 times smaller.

3. Sorting a decimal

   Nia feeds in 3.582. The 3 sits left of the point, in the ones place. Then come the 5 in the tenths, the 8 in the hundredths, and the 2 in the thousandths.