Tzeadim › 6–12 years

Thinking · Milestone

Understands tens and units

Most children: 6y 6m–8y

What it is

Knows that 24 is two tens and four units — the idea the rest of arithmetic stands on.

Start preparing

1. Count real things in tens: matchsticks in bundles, coins, sweets in rows.
2. Money is the best manipulative in Israel — shekels and agorot make tens obvious.
3. Ask 'how did you work that out?' rather than checking the answer.

Sources

• Bright Futures periodicity schedule — American Academy of Pediatrics · checked 30-08-2026

Last reviewed 30-08-2026 · Confidence: medium

Compiled with AI assistance from the public sources listed above. Not yet reviewed by a clinician — check anything important against the source, with Tipat Halav or with your doctor.