Lesson 2-2 a

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# Lesson 2-2 a - PowerPoint PPT Presentation

Lesson 2-2 a. Divisibility Tests. Obj : To use rules for divisibility on a large number. HWK: p 73 1-7 all (on problems 1-5 add 6 to the directions) Vocab : 1) divisible. Divisibility Tests. Number Test for Divisibility 2 Number ends in 0, 2, 4, 6, or 8

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### Lesson 2-2 a

Divisibility Tests

Obj: To use rules for divisibility on a large number
• HWK: p 73 1-7 all
• (on problems 1-5 add 6 to the directions)
• Vocab: 1) divisible
Divisibility Tests
• Number Test for Divisibility
• 2 Number ends in 0, 2, 4, 6, or 8
• 3 Sum of the digits is divisible by 3
• 4 The number formed by the last two
• digits is divisible by 4
• 5 Number ends in 0 or 5
• ** 6 Number is divisible by 2 and 3
Divisibility Tests (cont)
• Number Test for Divisibility
• 8 The number formed by the last
• three digits is divisible by 8
• 9 Sum of the digits is divisible by 9
• 10 Number ends in 0

Ex 1) Is 567 divisible by 3?

• Ex 2) Is 934 divisible by 4?

Ex 3) Is 29,640 divisible by 8?

• Ex 4) Is 3016 divisible by 9?