Dana made 4 stacks of wooden blocks. The first stack was 9 blocks tall. The second stack was 8 blocks taller than the first. The third stack was 12 blocks shorter than the second stack, and the last stack was 3 blocks taller than the third stack. How many blocks did Dana use in all? _____ blocks

Question

Dana made 4 stacks of wooden blocks. The first stack was 9 blocks tall. The second stack was 8 blocks taller than the first. The third stack was 12 blocks shorter than the second stack, and the last stack was 3 blocks taller than the third stack. How many blocks did Dana use in all?  ​_____ blocks

Bytelearn · Accepted Answer

Calculate first stack height:  Calculate the height of the second stack. First stack = 9 blocks. Second stack = First stack + 8 blocks = 9 blocks + 8 blocks = 17 blocks.Calculate second stack height:  Calculate the height of the third stack. Second stack = 17 blocks. Third stack = Second stack - 12 blocks = 17 blocks - 12 blocks = 5 blocks.Calculate third stack height:  Calculate the height of the fourth stack. Third stack = 5 blocks. Fourth stack = Third stack + 3 blocks = 5 blocks + 3 blocks = 8 blocks.Calculate total blocks:  Add up all the blocks in the four stacks to find the total. Total blocks = First stack + Second stack + Third stack + Fourth stack = 9 blocks + 17 blocks + 5 blocks + 8 blocks = 39 blocks.

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