Below are the elementary topics available for the category "Ratio + proportion" at Free Math Games.
These free math topics with audio offer a complete set of basic Ratio + proportion topics for elementary pupils (Kindergarten to 5th grade, ages 5 to 11). The Ratio + proportion category is divided into sub-categories such as " Relative sizes", " Percent: no calculator", " Percent: with calculator", etc. Each sub-category has multiple topics with between 6 and 10 question and answer pairs for the lessons, plus additional question answer pairs for the games and tests.
For each question/answer pair in a topic you get the question as picture, equation or text, the spoken question read by a robot, and an answer as both number or text and as audio. For most topics there are also 3 wrong answers prepared for each question.
5th grade (19 topics)
Ratio + proportion ➔ Relative sizes
Use multiplication and division to get double the size of the objects or values
Use multiplication and division to find triple the given values and measures
Use multiplication and division to find five times the given sizes
Use multiplication and division to find half of the given quantities and measures
Use multiplication and division to find a third of the size of the given values and measures
Use multiplication and division to find a fifth of the given values and measures
Total size from decimal portion
Use multiplication and division to calculate the whole value or measure from the given decimal portion
Relative size: find scale factor
Use multiplication and division to find the scale factor given original and final sizes
Ratio + proportion ➔ Percent: no calculator
From 100% find out what 10% is using division (without using your calculator)
Find 30% by breaking up each given value into 3 lots of 10% (no calculator)
Find 15% by breaking up each given value into a 10% and a 5% and adding them together
Ratio + proportion ➔ Percent: with calculator
Find 15% with your calculator using the multiplier 0.15
Find 8% with your calculator using the multiplier 0.08
Find 80% with your calculator using the multiplier 0.8
Ratio + proportion ➔ Express as a percentage
Express 2 values as a percentage
Express 2 values as a percentage by creating a fraction from the 2 numbers and multiplying by 100
Ratio + proportion ➔ Compare proportions
Compare fractions, decimals, percent
Compare proportions using fractions, decimals and percent and say which is the biggest part of the whole
Percentages of different measures
Identify which percentage of a length is the longest
Ratio + proportion ➔ Similar shape problems
Scale factors: calculate dimensions
Use the scale factor and model or drawing dimensions to calculate the real dimensions
Similar shapes: find scale factor
Use the properties of similar shapes to find the scale factor
In addition to the Ratio + proportion topics shown above, the elementary section of Free Math Games has 17 other top level categories of topics to choose from. Each top level category offers a full breadth of topics to cover the elementary curriculum. Use these topics to reinforce key math concepts in a fun and engaging way that will keep your pupils enthused and energised with the math they are learning. The top level categories available are:
- Counting
- Comparing numbers
- Pattern
- Place value
- Addition
- Subtraction
- Add + Subtract
- Multiplication
- Division
- Multiply + Divide
- Fractions
- Decimals
- Percentages
- Ratio + proportion
- Measurements
- Shapes
- Position + Direction
- Statistics
- Algebra