Erin made 4 stacks of wooden blocks. The first stack was 5 blocks tall. The second stack was 10 blocks taller than the first. The third stack was 13 blocks shorter than the second stack, and the last stack was 8 blocks taller than the third stack. How many blocks did Erin use in all?
first 5 blocks
second 15 blocks
third 2 blocks
fourth 10 blocks
I bet you can add 5+15 + 10 + 2
5 + 10 = 15
15 - 13 = 2
2 + 8 = 10
5 + 15 + 2 + 10 = ?
To find out how many blocks Erin used in all, we need to calculate the total number of blocks in each stack and then add them together.
First stack: 5 blocks
Second stack: 10 blocks taller than the first stack, so 5 + 10 = 15 blocks
Third stack: 13 blocks shorter than the second stack, so 15 - 13 = 2 blocks
Fourth stack: 8 blocks taller than the third stack, so 2 + 8 = 10 blocks
Now, we add the number of blocks in each stack together to find the total: 5 + 15 + 2 + 10 = 32 blocks.
Therefore, Erin used a total of 32 blocks.
To find the total number of blocks Erin used, we need to sum up the blocks in each stack.
Let's break it down step by step:
1. The first stack was 5 blocks tall.
Therefore, the first stack had 5 blocks.
2. The second stack was 10 blocks taller than the first.
Since the first stack had 5 blocks, the second stack had 5 + 10 = 15 blocks.
3. The third stack was 13 blocks shorter than the second.
Since the second stack had 15 blocks, the third stack had 15 - 13 = 2 blocks.
4. The last stack was 8 blocks taller than the third.
Since the third stack had 2 blocks, the last stack had 2 + 8 = 10 blocks.
Now, to find the total blocks used, we can sum up the blocks in each stack:
Total blocks = 5 + 15 + 2 + 10 = 32
Therefore, Erin used a total of 32 blocks.