## Related Resources

The various resources listed below are aligned to the same standard, (1NBT02) taken from the CCSM (Common Core Standards For Mathematics) as the Place value Worksheet shown above.

*Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:*

- 10 can be thought of as a bundle of ten ones – called a “ten.”
- The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
- The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

### Chart

#### Place Value Charts

- Place Value Chart: Tens – with blocks for highlighting
- Place Value Chart: Tens

### Worksheet

#### Worksheet Generator

- Preparing To Subtract – Regrouping Ten (e.g. 58 as 5 tens and 8 ones or 4 tens and 18 ones)
- Ones & Tens in a Number Frame

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

*Understand place value*

- Comparing Numbers: Greater Than & Less Than (From Example/Guidance)