2, 3, 4, 5, 6, 9, 10 “Divisible BY” What does it mean?

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Slide 2 2, 3, 4, 5, 6, 9, 10 Slide 3 Divisible BY What does it mean? Slide 4 Divisible by means: If you divide one number by another, the result is a whole number WITHOUT a remainder. Examples: 12 6 = 2 No remainder 15 5 = 3 No remainder Slide 5 Divisibility Rule 2 A number is divisible by 2 if the last digit is even. (0, 2, 4, 6, 8) Examples:783470 Review Even numbers: ghosteven ghosteven Slide 6 Now You Try: Which number IS NOT divisible by 2? 5721464249 Need More Practice: Numbers Divisible by 2Numbers Divisible by 2 Slide 7 WONDERFUL Slide 8 It ends in a 0, 2, 4, 6, or 8. Slide 9 Divisibility Rule 3 A number is divisible by three if the sum of the digits is divisible by 3. Examples: 75 7 + 5 = 12 12 3 = 4 No Remainder 369 3 +6 + 9 = 18 18 3 = 6 No Remainder Slide 10 Now You Try: Which number IS NOT divisible by 3? 5721464279 Need More Practice: Numbers Divisible by 3Numbers Divisible by 3 Slide 11 The sum is divisible by 3. Slide 12 WONDERFUL Slide 13 Divisibility Rule 4 A number is divisible by 4 if the last two digits are divisible by 4. Examples: 132020 4 = 5 67272 4 = 18 Slide 14 Now You Try: Which number IS NOT divisible by 4? 5644101188 Need More Practice: Numbers Divisible by 4Numbers Divisible by 4 Slide 15 WONDERFUL Slide 16 The last 2 digits are divisible by 4. Slide 17 Divisibility Rule 5 A number is divisible by 5 if the last digit is a 0 or 5. Examples: 615ends in a 5 1480ends on a 0 Slide 18 Now You Try: Which number IS NOT divisible by 5? 9820 779 560 Need More Practice: Numbers Divisible by 5Numbers Divisible by 5 Slide 19 The number ends in a zero or a five. Slide 20 Wonderful Slide 21 Divisibility Rule 6 A number is divisible by 6 when it is divisible by 2 AND 3. (prime numbers) Examples: 408ends in an even number (2 rule) sum of the digits is divisible by 3 Review prime and composite numbers: Prime and Composite Numbers Prime and Composite Numbers Prime and Composite Numbers Slide 22 Now You Try: Which number IS NOT divisible by 6? 8700523 7602 Need more practice? Numbers Divisible by 6 Numbers Divisible by 6Numbers Divisible by 6 Slide 23 Way To Go!! Slide 24 This number is divisible by 2 and 3. Slide 25 Divisibility Rule 9 A number is divisible by 9 if the sum of the digits is divisible by 9. Examples: 963 9 + 6 + 3 = 18 18 9 = 2 54455 + 4 + 4 + 5 =18 18 9 =2 Slide 26 Now You Try: Find the number that IS NOT divisible by 9. 98736365541 Need More Practice: Numbers Divisible by 9 and 10 Numbers Divisible by 9 and 10Numbers Divisible by 9 and 10 Slide 27 The sum of the digits is divisible by 9. Slide 28 Great Job!!! Slide 29 Divisibility Rule 10 A number is divisible by 10 is it ends in a ZERO. Example: 7630ends in a zero 410ends in a zero 410ends in a zero Slide 30 Now You Try: Find the number that IS NOT divisible by ten. 56,920 7537870 Slide 31 The number ends in a ZERO. Slide 32 Way To Go!! Slide 33 Congratulations! Complete two of the three assignments. You may complete them on your computers but print out your answer sheet. Assignment 1.doc Assignment 1.doc chart.doc assignment3.doc Slide 34 Now that you have completed your two assignments, feel free to go to the following sites. THEY ARE SOOOOO MUCH FUN!!!!!! Fractions vectorkids -divisibility rules Gamequarium Division Games Fractions vectorkids -divisibility rules Gamequarium Division Games Fractions vectorkids -divisibility rules Gamequarium Division Games