# NA4-3: Find fractions, decimals, and percentages of amounts expressed as whole numbers, simple fractions, and decimals.

This means students will understand that finding a decimal or percentage of an amount involves finding a fraction of that amount, for example 40% of 56 = 0.4 x 56 = 4 x 5.6 = 22.4. They should be able to solve problems of the form a/b x c = d (a,b,c and d are whole numbers), where any one of the numbers is not known, for example 4/7 x = 24 (Four-sevenths of what number is twenty-four?) or % of 76 = 19 (What percentage of seventy-six is nineteen?). Students should be able to multiply fractions with understanding, for example 2/3 x 3/5 = as two-thirds of four-fifths, and use their multiplicative understanding of place value to solve multiplication and division problems with simple decimals, for example 1.6 x 0.4 = as 16 x 4 ÷ 100 = 0.64 and 24 ÷ 0.3 = as 24 ÷ 3 x 10 = 80.

find decimal fractions of whole numbers

find a fraction of a whole number

- Identify a utility need or opportunity within the school and plan a response .
- Create a design incorporating key attributes identified.
- Investigate quality and comparative costs of possible construction materials.
- Cost ‘fit for purpose’ construction materials and prepare a budget.
- Draw plans300

- Understand and describe proportion using the language of mathematics.
- Make accurate metric length measurements.
- Understand the principles of scale.
- Understand that the value of the scale factor of a reduction is less than 1 and for an enlargement is greater than 1.
- Understand that the scale300

find fractions of a whole number

find a percentage of a whole number

find percentages

use addition to sovle money problems

use multiplication and division to solve problems

find percentage of a number

solve problems involving ratios

find fraction of a number

- Students will be able to create a model of the “whole” of a specific length of time and use a meaningful scale to illustrate fractions within that length of time.
- Students will be able to demonstrate an understanding of the mathematical relationships between of units of time.

find fractions of a number

find fractions of money amounts

add money amounts

order whole numbers

find a percentage of a whole number

find a percentage of a decimal number

solve addition and subtraction problems

compare prices by using proportions

order fractions

- Calculate the cost of hiring a taxi, hiring a car, and using a phone, and the cooking time for meat.
- Compare the costs of different plans.
- Represent linear relationships using graphs.
- Use graphs to make decisions about the best deal.

find percentages of whole numbers

find fractions of whole numbers

calculate the interest rate on money deposits

find fractions, decimals, percentages of a whole number

know equivalent fractions, decimals and percentages

- Name the fraction for a given Cuisenaire rod with reference to one (whole).
- Give the relationship between one Cuisenaire Rod and another, especially when one rod is a fraction of the other.
- Add and subtract fractions by expressing fractions as equivalents with the same denominator.
- Order300

find fractions of time

calculate average speed

interpret timetable

use a table or double number line to find a linear relationship

find a fraction of a whole number