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Lesson 2-2 a

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

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  1. Lesson 2-2 a Divisibility Tests

  2. 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

  3. 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

  4. 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

  5. Ex 1) Is 567 divisible by 3? • Ex 2) Is 934 divisible by 4?

  6. Ex 3) Is 29,640 divisible by 8? • Ex 4) Is 3016 divisible by 9?

  7. Ex 5) Is 3060 divisible by 2, 3, 4, 5, 6, 8, 9, and 10?

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