Monday
Monday: Ten times the place to the right
Bennie the Bear is sorting smooth stones for the new trail wall.
He drops ten stones into a cloth bag and ties it shut.
"Ten bags go in one box," he says, stacking them carefully.
"And ten boxes fill one crate."
Ferris the Fox peeks into the crate with wide eyes.
"How many stones are in there?" he asks.
Bennie smiles and taps the crate. "Each step up holds ten times as many as the step before."
"Let us find out how big that gets."
Learn it: each place is worth ten times more
Ten ones make one ten. Ten tens make one hundred.
Ten hundreds make one thousand. Ten groups of one thousand make 10,000.
So each place is worth ten times the place to its right.
Every digit in 3,333 is a 3, but each 3 has a different value.
The 3 in the thousands place is worth 3,000.
The 3 next to it is worth 300. 3,000 is ten times 300.
Dividing shows the same idea: 3,000 ÷ 300 = 10.
- Read the question.
- Tap your answer.
Learn it: the value of a digit
A place value chart shows each digit in its place.
In 472,815, the 7 is in the ten thousands place.
So the 7 is worth 70,000.
- Read the question.
- Tap your answer.
- Read the question.
- Tap your answer.
- Each place is ten times the one before it.
- Tap the places from smallest to largest.
| Sentence | True or false? |
|---|---|
| 10 × 300 = 3,000 | ? |
| 800 ÷ 80 = 100 | ? |
| 10 × 5,000 = 50,000 | ? |
| The 4 in 40,000 is ten times the 4 in 4,000. | ? |
Make 10 piles like that. That is 100 clips.
Imagine 10 groups of 100. How many clips would that be?
Great thinking! Tomorrow we read and write big numbers.