Ratio
Start with the order of the quantities, then use equal units to solve sharing and changing-ratio problems.
Your child writes ratios such as 3 : 2 and 3 : 2 : 4 in the order the question names the quantities, finds equivalent ratios and simplest form, and shares a quantity by finding 1 unit first. Your child then solves before-and-after questions by finding what stays unchanged, joins two ratios through a shared quantity, and prices a repeated set. Read the study guide →
About this chapter
Primary 6 ratio questions start with reading a : b and a : b : c in the right order, then move to equivalent ratios, simplest form and sharing a quantity in a given ratio. The later pages cover the before-and-after word problems, where the total, the difference or one quantity stays the same, and the harder ones where nothing does.
Practise by question type: writing a ratio, equivalent ratios questions, sharing in a ratio questions, fraction and ratio questions, constant total ratio questions, constant difference ratio questions, ratio questions with one quantity unchanged, two ratios with a common term, ratio and money word problems and ratio questions where both quantities change.
The topics in Primary 6 Ratio
Primary 6 Ratio Study Guide
Count laps morning by morning, share beads unit by unit, and cut bars into smaller units when nothing stays the same. Five worked examples and a short check come after the steps.
Start hereWriting ratiosSharingBefore and afterNothing the sameTwo ratiosMoney setsOpen the study guide →