2nd Grade Place Value Worksheets - Free Printable

To find the number of unshaded blocks, we need to calculate the total number of blocks available and subtract the sum of all the blocks that are shaded.

1. Calculate the Total Number of Blocks:
The image displays three types of place value blocks:
* Hundreds Blocks (Flats): There are 2 rows of 7 blocks each, so 2 × 7 = 14 hundreds blocks.
* Total from hundreds: 14 × 100 = 1400 blocks.
* Tens Blocks (Rods): There is 1 row of 20 blocks.
* Total from tens: 20 × 10 = 200 blocks.
* Ones Blocks (Units): There is 1 row of 20 blocks.
* Total from ones: 20 × 1 = 20 blocks.

Adding these together gives the total number of blocks available:
1400 + 200 + 20 = 1620 blocks.

2. Calculate the Total Number of Shaded Blocks:
We add up the blocks shaded for each color as specified in the instructions:
* Red: 160 blocks
* Yellow: 405 blocks
* Blue: 253 blocks
* Green: 576 blocks

Total shaded blocks = 160 + 405 + 253 + 576 = 1394 blocks.

3. Calculate the Number of Unshaded Blocks:
Subtract the total shaded blocks from the total available blocks:
1620 - 1394 = 226 blocks.

Therefore, the number of unshaded blocks is 226.