Compose numbers from place-value parts

A number is composed by combining its place-value units: hundreds, tens, and ones, so $347$ represents 3 hundreds, 4 tens, and 7 ones; a zero in a place indicates that no unit of that value is present. The understanding includes equivalent regroupings such as 1 hundred equaling 10 tens and supports reading numbers in standard, expanded, and place-value form for whole numbers through 1,000, without extending to larger-number systems or generalized notation.

Detailed Explanation: Compose numbers from place-value parts

To compose a number, combine its place-value parts:

Each hundred is worth $100$ .
Each ten is worth $10$ .
Each one is worth $1$ .

Example: Compose a number with 5 hundreds, 2 tens, and 0 ones.

Find the value of each part:
- 5 hundreds: $5 \times 100 = 500$
- 2 tens: $2 \times 10 = 20$
- 0 ones: $0 \times 1 = 0$
Add the parts:

500+20+0=520

Write the number in different forms:
- Standard form: $520$
- Expanded form: $500+20+0$
- Place-value form: 5 hundreds, 2 tens, and 0 ones

The zero shows that there are no ones. Therefore, 5 hundreds, 2 tens, and 0 ones compose the number $\boxed{520}$ .

Learn by doing: Compose numbers from place-value parts

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Base 10 Blocks - Adding - Picture to Answer, With Carry - Hundreds and Tens

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Compose numbers from place-value parts

Detailed Explanation: Compose numbers from place-value parts

Learn by doing: Compose numbers from place-value parts

Practice with unlimited practice problems

Practice:

Base 10 Blocks - Adding - Picture to Answer, With Carry - Hundreds and Tens