Using Patterns on a Hundreds
chart to Write Rules (2, 3 and 6)
3.OA.9
You will need: a hundreds chart in a sheet protector, dry erase markers, rule recording sheet
1. Circle all multiples of 2 on the hundreds chart.
• What do you notice about multiples of 2?
• Look at the digits in the ones place, what do they have in common?
2.
3.
4.
5.
6.
Write a rule for multiples of 2. Remember that a rule must encompass
all multiples of 2.
In a different color, circle all multiples of 3.
• What do you notice about multiples of 3?
• What happens when you add the digits of a multiple of 3? (example 3 x 9 = 27,
2 + 7 = 9)
• What do they have in common?
Write a rule for multiples of 3. Remember that a rule must encompass
all multiples of 3.
In a third color, circle all mutiples of 6.
• What do you notice about multiples of 6?
• What do they have in common?
Write a rule for multiples of 6. Remember that a rule
must encompass all multiples of 6.
Using Patterns on a Hundreds
Chart to Write Rules (5 and 10)
3.OA.9
You will need: a 100s chart in a sheet protector, dry erase markers, rule recording sheet
1. Circle all multiples of 5.
• What do you notice about multiples of 5?
• Look at the digits in the ones place, what do they have in
common?
2. Write a rule for multiples of 5. Remember that a rule
must encompass all multiples of 5.
3. In a different color, circle all multiples of 10.
• What do you notice about multiples of 10?
• Look at the digits in the ones place, what do they have in
common?
4. Write a rule for multiples of 10.
Remember that a rule must encompass
all multiples of 10.
Using Patterns on a Hundreds
Chart to Write Rules (9)
3.OA.9
You will need: a 100s chart in a sheet protector, dry erase markers, rule recording sheet
1. Circle all multiples of 9.
2. Make a vertical list of all of the numbers that you
circled.
• What do you notice about multiples of 9?
• What do they have in common?
• What happens when you add the digits of a multiple of
9? (example 9x6=54 , 5+4=9)
3. Write a rule for multiples of 9.
Remember that a rule must
encompass all multiples of 9.
3.OA.9
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RulesRecordingSheet
3.OA.9
Number
Rule
2
All multiples of 2 _____________________________________________
__________________________________________________________________
3
All multiples of 3 _____________________________________________
__________________________________________________________________
5
All multiples of 5 _____________________________________________
__________________________________________________________________
6
All multiples of 6 _____________________________________________
__________________________________________________________________
9
All multiples of 9 _____________________________________________
__________________________________________________________________
10
All multiples of 10 ____________________________________________
__________________________________________________________________