Unit 1 · Class 7 IB MYP · Formula Sheet

Rational Numbers Formulas — Class 7 IB MYP

Extend number understanding to rational numbers, their ordering, and operations.

Key Formulas

Definition

\dfrac{p}{q}, \quad q \neq 0

Ordering

\text{Convert to common denominator or decimals to compare}

Operations

\dfrac{a}{b} \times \dfrac{c}{d} = \dfrac{ac}{bd}, \quad \dfrac{a}{b} \div \dfrac{c}{d} = \dfrac{ad}{bc}

Worked Examples

1Using: Place Value

Find the place value of 6 in 3,65,421.

Step 1: 6 is in the ten-thousands place.

Step 2: Place value = 6 x 10,000 = 60,000.

Answer: 60,000

2Using: Successor

Find the successor of 9,999.

Step 1: Successor = n + 1

Step 2: = 9,999 + 1 = 10,000.

Answer: 10,000

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More Class 7 IB MYP Formulas

Percentages & Proportional ReasoningAlgebraic ExpressionsLinear EquationsAngle RelationshipsTransformationsArea & Perimeter

Frequently Asked Questions

How many formulas are in Class 7 IB MYP Rational Numbers?+
There are 3 formulas in the Rational Numbers chapter for Class 7 IB MYP. Each formula is essential for solving problems in this topic.
How to remember Rational Numbers formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Rational Numbers formulas enough for exams?+
Yes, these formulas cover the complete IB MYP Class 7 syllabus for Rational Numbers. Practice applying them to different types of questions for full exam readiness.

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