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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

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lesson 2 2 a

Lesson 2-2 a

Divisibility Tests

obj to use rules for divisibility on a large number
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
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
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
slide5

Ex 1) Is 567 divisible by 3?

  • Ex 2) Is 934 divisible by 4?
slide6

Ex 3) Is 29,640 divisible by 8?

  • Ex 4) Is 3016 divisible by 9?
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