Adding means “putting together”; subtracting means “taking away”. Once numbers pass ten, the trick is packing 10 bananas into a crate — a “ten-crate”. Then 13 is just 1 crate of ten and 3 more bananas. Kids understand two-digit numbers by seeing them, not memorizing them.
2 bananas, get 1 more → 3 bananas in all
5 bananas, the monkey munches 2 → 3 left
9 and 4 together: pack ten into a crate, 3 left over → 13
💡 For parents
If your child can count on fingers but gets stuck past ten, teach “making ten” with real objects — bundle 10 rubber bands or use a 10-egg carton. Say it out loud together: 13 is “one ten and three more”. Once two-digit numbers look like “a group of ten plus extras”, bigger sums suddenly make sense. Keep sessions short — 5–10 minutes is plenty.
Fingers stop at ten, so kids stall past it. Teach grouping by ten with real objects: pack 10 bananas into a crate so 13 = 1 ten-crate + 3 more. Once a two-digit number reads as “ten and extras”, counting on, adding, and subtracting beyond ten get much easier.
Addition first — “putting together” feels natural to young kids. Then introduce subtraction as “taking away”, using real objects that really disappear: two cookies got eaten, how many are left?
Around ages 4–6, start with counting real objects and small sums within 10. Keep it visual and hands-on before writing numbers. Once that feels easy, move on to 11–20 using the make-ten trick.
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