MathGrade 2ages 7–8
🧱 Tens and ones
A second grader who reads 34 as "three and four" instead of "three tens and four ones" hasn't learned place value yet — they've only learned to name digits.
Try this lesson freeNo card needed. The first lesson is free.
Download on the App StoreWhat your child learns
- Ten ones = one ten.
- The left digit is tens, the right is ones.
- 34 = 30 + 4.
- Not 3 + 4. Three bundles are thirty.
The mistake most kids make here
Reading 34 as 3 and 4 with no tens.
Try one question
In 34, how many tens?
34
- 3
- 4
- 34
Answer
3 — That's it. 3 tens and 4 ones. Not 34 tens.
How Maya teaches it
Your child tells Maya what they did in class. She teaches this topic at her desk, asks questions with tappable answers, and when the answer is wrong she explains why that answer was tempting instead of saying “try again”. She remembers what did not land and comes back to it.
Your child has it when they can: Split 42 into tens and ones.
How to help at home
Place value only clicks once a child has physically bundled ten small things into one group. Gather 30–40 small objects — dried pasta, matchsticks, coins — and rubber-band them into bundles of exactly ten.
Build a number like 34 on the table: three bundles of ten and four loose pieces. Ask your child to say what the 3 in "34" means, pointing at the bundles, not just at the digit.
If they say "three and four" without mentioning tens, say: "count the bundles with me — how much is each bundle worth?" and rebuild the number together rather than correcting the digit alone.
A sign they've got it: given a new number like 52, they build it correctly with bundles and loose pieces before you ask, and can explain that the 5 is worth fifty, not five.
Questions parents ask
- Why does my child say 34 is "three and four" instead of understanding the tens?
- They've learned to read the two digits but not yet that the left one means groups of ten. Physically bundling ten objects together, repeatedly, is what usually makes the jump to "the 3 means three groups of ten."
- What is place value and why does grade 2 focus on it?
- Place value is the idea that a digit's position changes what it's worth — the 3 in 34 means thirty, not three. It's the foundation for every larger number and for carrying and borrowing later on.
- How can I practice place value without worksheets?
- Bundle ten small objects with a rubber band or in a small cup, then build two-digit numbers on the table using bundles for tens and loose pieces for ones. Rebuilding several different numbers this way works better than one worksheet.
- How does Maya teach tens and ones?
- Maya asks the child what the tens digit is worth in context — not just to name it — so "three" without "thirty" gets caught and corrected on the spot.
No card needed. The first lesson is free.
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