Anna and Belle are two friends who are in grade 5 at Lason Elementary School. They plan to put together their weekly allowances to be donated to an animal care foundation. Anna and Belle have $12 and $8, respectively. They agreed to set aside one-fifth of their money. Write expressions to match and then solve it.
- The expression is ¹/₅ x (12 + 8).
- The solution is 4.
Further explanation
Given:
- Anna and Belle plan to put together their weekly allowances to be donated to an animal care foundation.
- They have $12 and $8, respectively.
- They agreed to set aside one-fifth of their money.
Question:
Write expressions to match and then solve it.
The Process:
Here are some early expressions that need attention.
- one-fifth is [tex]\boxed{\frac{1}{5}}[/tex]
- the sum of 12 and 8 is [tex]\boxed{(12 + 8)}[/tex]
The expression for one-fifth of the sum is [tex]\boxed{\frac{1}{5} \times (12 + 8)}[/tex] which is the amount of money they are donating together.
We know that the key word or phrase 'of' is used to describe a common mathematical operation, which is multiplication. It is synonymous with 'the product'.
- - - - - - - - - -
Here are the steps to solve the expression.
Firstly, we add up their weekly allowances.
[tex]\boxed{ \ \$ 12 + \$ 8 = \ ? \ }[/tex]
[tex]\boxed{\boxed{ \ \$ 20 \ }}[/tex]
Secondly, one-fifth multiplied by the number of their weekly allowances.
[tex]\boxed{ \ = \frac{1}{5} \times (12 + 8) \ }[/tex]
[tex]\boxed{ \ = \frac{1}{5} \times \$ 20 \ }[/tex]
Or it can be written as, [tex]\boxed{ \ = \$ 20 \div 5 \ }[/tex]
[tex]\boxed{\boxed{ \ \$ 4 \ }}[/tex]
Thus, they donated together for $ 4.
Learn more
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Keywords: create and solve, a story problem, about, two friends, their weekly allowance, whose, solution, the expression 1/5 x (12 + 8), Anna and Belle, in grade 5, Lason Elementary School, plan to put together, to be donated, to an animal care foundation, $12 and $8, respectively, they agreed, to set aside, one-fifth, their
