To subtract 10 and 10 from 234, we can use the place-value blocks to help us.
The blocks for 234 are as follows:
- 2 hundreds blocks
- 3 tens blocks
- 4 ones blocks
To subtract 10, we can remove 1 tens block from 234. So, the remaining blocks would be:
- 2 hundreds blocks
- 2 tens blocks
- 4 ones blocks
To subtract another 10, we can remove another 1 tens block from the result above. So, the final blocks would be:
- 2 hundreds blocks
- 1 tens block
- 4 ones blocks
Therefore, the equation would be:
234 - 10 - 10 = 214