# Examples for 5th grade (the fifth graders) - page 21

- Adding shapes

5 triangles + 1 square = how many sides in all - A rectangular

A rectangular garden 40 m long and 30 m wide is to be fenced with fence posts at each corner. All the other posts will be 5 meters a part. How many posts will be needed to fence in the garden. - Written number

Place+values x ten thousands =30 thousands - Multiples

What is the sum of the multiples of number 7 that are greater than 30 but less than 56? - Density 2

What is the density of a piece of driftwood that has the mass of 25 grams and a volume is 30 cm to the 3rd power. And how do I figure it out? - A koala

A koala lives to be 14 years old in the wild. How much longer will a 2 year old koala probably live? - Cake 7

1/3 of a cake shared with 4 people. What share of the whole cake has each people? - Find the 6

Find the total cost of 10 computers at $ 2100 each and 7 boxes of diskettes at $12 each

We apologize, but in this category are not a lot of examples.

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Do you have an interesting mathematical example that you can't solve it? Enter it, and we can try to solve it.