To make the Divisibility Rules foldable, you will need 4 pieces of paper

To make the Divisibility Rules foldable, you will need 4 pieces of paper

To make the Divisibility Rules foldable, you will need 4 pieces of paper

To make the Divisibility Rules foldable, you will need 4 pieces of paper

To make the Divisibility Rules foldable, you will need 4 pieces of paper

To make the Divisibility Rules foldable, you will need 4 pieces of paper

Then fold it back on itself to make the 10 “flaps”

Then fold it back on itself to make the 10 “flaps”

Then staple along the top edge to keep it all together…

Warm up1.Teresa runs each day to practice

for an upcoming race. On Friday she ran between 5.2 and 5.3 miles. Which of the following could have been the distance she ran?

A)5.155 B) 5.321 C) 5.5 D) 5.21

2. Ella orders two tacos for $2.90 each and a large curly fry for $3.15. What is her approximate total?

A) $9 B) $6 C) $7 D) $8

DivisibilityPrime NumbersThe Number 1

Composite Numbers

Divisibility Rule 2Divisibility Rule 3

& 9Divisibility Rule 6Divisibility Rule 5

& 10

Prime Numbers

Are numbers that can only be divided by 1 and itself.

Examples:

Composite Numbers

Are numbers that have an additional divisor other than 1 and itself

Examples:

The Number 1

Is not Prime or Composite.

Why?

2

If the number is EVEN

Examples:

Non-examples:

3

If the sum of the digits is divisible by 3

Examples:

Non-examples:

9

If the sum of the digits is divisible by 9

Examples:

Non-examples:

6

If the number is EVEN and divisible by 3

Examples:

Non-examples:

5

If the number ends in 0 or 5

Examples:

Non-examples:

10

If the number ends in 0Examples:

Non-examples:

25

If the last 2 numbers are 00, 25, 50, 75Think about quarters

Examples:Non-examples:

2 3 5 9 10 25

26

27

30

Are these

numbers

Divisible by these numbers?

2 3 5 9 10 25

32

42

45

Are these

numbers

Divisible by these numbers?

2 3 5 9 10 25

50

75

90

Are these

numbers

Divisible by these numbers?

1) Divisible by 3?

53 77132 94

29 14 94 75

87 91 109 118

44 36274 19

2) Divisible by 25?

275 177 256 305

452 650 502 372

195 220 200 85

Divisible by 23) 1,32_ 4) 36_ 5) _42 6) 6,52_

Divisible by 57) 7,82_ 8) 16_ 9) 2,18_ 10) 45_

Divisible by 911) 1,52_ 12) 23_ 13) _24 14) 92_

Some Friendly Advice

Divisible by2 3 5 9 10

1. 4095 S N E V O