Math · Stage 3
Test divisibility by 2, 5 and 10 from the last digit
A number-detective trick: the ones digit alone tells you if 2, 5 or 10 divides a number exactly — no long division needed.
✦ Math📘 Stage 3 · S3⏱ ~10 min🧒 Ages 7–8★ Free to start
I can decide quickly whether a number divides exactly by 2, 5 or 10 by looking only at its last digit.
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Kavi's Pebble Baskets 🪨
Kavi is sorting a pile of number pebbles into baskets — one for ÷2, one for ÷5, one for ÷10. "I never do long division," she hoots. "I just peek at the last digit! A pebble ending in 0 jumps into every basket 🪄."
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What your child will learn
1Only the last digit decidesYou do not need the whole number — just its last digit. Tap each row to hear it.
2Zero is the super-endingBuild 370. Notice the ones column is 0. Tens and hundreds are already stacks of 10, so they always share out evenly — only the ones digit can leave a remainder.
3The even numbers light upCount by 2: the lit numbers are the ones that divide by 2. Watch their last digits cycle.
4Does it divide by 10?A number divides by 10 only when its last digit is 0. Tap the right basket for each one — peek at the last digit!
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A peek inside
Does 68 divide exactly by 2?
look at the last digit → 8 is even
Try this at home: Last-digit test: Is 94 divisible by 2? __ · Is 95 divisible by 2? __
Ready to play and learn?
Start the free interactive lesson, or print the handout for screen-free play.
Part of Math · Stage 3 · S3 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.