Answer the following question.
Jess made 3 different stacks of wooden blocks. The first stack was 7 blocks high, the second stack was 5 block(s) higher than the first, and the final stack was 7 block(s) higher than the second. Jess’ little sister knocked over the entire first tower, in the second tower she left 2 blocks standing, and in the final tower she left 3 blocks standing. How many blocks in total fell down?
Step-by-step reasoning process: Jess’ second stack was 7 blocks + 5 blocks = 12 blocks. Jess’ third stack was 12 blocks + 7 blocks = 19 blocks high. Jess’ sister knocked down the second tower and knocked 12 blocks – 2 = 10 blocks knocked over. Jess’ sister knocked down the final tower and knocked 19 blocks – 3 = 16 blocks knocked over. Total blocks knocked over was 7 blocks + 10 + 16 = 33 blocks.
The answer is 33.

Answer the following question.
In Fred the Farmer's barn, there were 100 horses, 29 sheep, and 9 chickens. Brian bought half of the animals and sold them at the market. Jeremy then gifted Fred an additional 37 goats. If exactly half of the animals in the barn are male animals, how many male animals are there in the barn?
Step-by-step reasoning process: Fred's barn started with 100 + 29 + 9 = 138 animals. Brian bought half of these, so there were 138 / 2 = 69 remaining. After Jeremy gifted Fred 37 goats, there were 69 + 37 = 106 animals in the barn. So, 106 / 2 = 53 of these animals are male.
The answer is 53.

Answer the following question.
Anna wants to grow some lettuce in the garden and would like to grow enough to have at least 12 large salads. She estimates that, despite her best efforts, half of the lettuce will be lost to insects and rabbits. Each lettuce plant is estimated to provide 3 large salads. How many lettuce plants should Anna grow in the garden?
Step-by-step reasoning process: The total number of plants needed for 12 dinner salads (without loss to insects or rabbits) is 12 / 3 salads from each lettuce plant = 4 lettuce plants. Since Anna expects to lose half of her plants to insects and rabbits, so we need to plant twice as many plants or 4 * 2 = 8 lettuce plants.
The answer is 8.

Answer the following question.
There are 20 boys and 11 girls in the second grade and twice that number in the third grade. How many students are in grades 2 and 3?
Step-by-step reasoning process: There are 20 + 11 = 31 students in second grade. There are 31 x 2 = 62 students in third grade. In total, there are 31 + 62 = 93 students.
The answer is 93.