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Divisibility Tests: Check the Ending

Can you check a large number without dividing it all? On your number board, 10, 20, 30, 40 end in zero, so 8560 is divisible by 10. For 5, look for...

Prompt

Source idea used to generate this video.

Create one continuous Grade 6 mathematics teaching animation with integrated narration, using a clean number board and magnified digit groups. Follow the textbook’s sequence and teach only the tests covered here: divisibility by 10, 5, 2, 4 and 8. First show multiples of 10: 10, 20, 30, 40. Highlight that numbers divisible by 10 end in 0; test 8560. Then show multiples of 5 and highlight the ending digits 0 or 5; test 125 and 8560. Next show multiples of 2 and explain that the last digit must be 0, 2, 4, 6 or 8; test 682 and 8560. For divisibility by 4, show 12 and 22 to demonstrate that the last digit alone is not enough. Highlight the last two digits; a number is divisible by 4 when the number formed by its last two digits is divisible by 4. Test 8536 using 36, and 8560 using 60. For divisibility by 8, highlight the last three digits and explain that divisibility of that three-digit number by 8 determines whether the whole number is divisible by 8. Test 8560 using 560; show 560 ÷ 8 = 70, so 8560 is divisible by 8. Show a compact comparison card: 10 → last digit 0; 5 → last digit 0 or 5; 2 → last digit even; 4 → last two digits divisible by 4; 8 → last three digits divisible by 8. Include a pause-and-predict challenge: test 14560 for divisibility by 2, 4, 5, 8 and 10. Reveal: yes for all five, because it ends in 0; the last two digits are 60, divisible by 4; the last three digits are 560, divisible by 8. Do not teach divisibility tests for 3, 6, 7 or 9; the textbook explicitly reserves them for later classes. Narration should be integrated if supported. If the tool cannot generate usable narration, preserve the exact script in the prompt and use the supported voice workflow without duplicating or rewriting it.

Narration

Narration used to create this video.

Video narration

Can you check a large number without dividing it all? On your number board, 10, 20, 30, 40 end in zero, so 8560 is divisible by 10. For 5, look for zero or five: 125 and 8560 pass. For 2, the last digit must be even: 682 and 8560 pass. But 4 needs two digits: 12 divides by 4; 22 doesn't, though both end in 2. Check 36 and 60: 8536 and 8560 pass. For 8, check three digits: 560 divided by 8 is 70, so 8560 passes. Predict: is 14560 divisible by 2, 4, 5, 8, and 10? Yes, all five: it ends in zero; 60 divides by 4, and 560 by 8. So yes-its last one, two, or three digits tell you if it divides evenly.