Primary 5 Mathematics Lessons and Practice
Primary 5 brings longer decimal work, fractions with different denominators and the order of operations (BODMAS). A short lesson with one worked example, then quick questions, keeps the rules from piling up.
Primary 5 units
Open any unit to start. The first unit is free.
- NumberPNT5
Number Theory: Factors, Multiples, GCF & LCM
Find factors, multiples, GCF, LCM, and prime factorisations, and use them as tools.
Start this unit → - NumberPPV5
Decimal Place Value, Powers of 10 & Exponents
Understand decimals to thousandths, powers of 10, and exponents; read, write, compare, and round decimals.
Start this unit → - OperationsPMM5
Multi-Digit Multiplication
Fluently multiply multi-digit whole numbers using the standard algorithm.
Start this unit → - OperationsPDV5
Multi-Digit Division
Divide up to 4-digit dividends by 2-digit divisors using strategies and long division.
Start this unit → - OperationsPOP5
Expressions & Order of Operations
Write, interpret, and evaluate numerical expressions using order of operations.
Start this unit → - FractionsPFR5
Fraction Concepts & Equivalence
Represent, compare, and simplify fractions; relate fractions to division; convert mixed and improper forms.
Start this unit → - FractionsPAF5
Adding & Subtracting Fractions
Add and subtract fractions and mixed numbers with unlike denominators.
Start this unit → - FractionsPMD5
Multiplying & Dividing Fractions
Multiply fractions and mixed numbers, understand multiplication as scaling, and divide with unit fractions.
Start this unit → - DecimalsPDO5
Decimal Operations
Add, subtract, multiply, and divide decimals, including by powers of 10.
Start this unit → - GeometryPGV5
Geometry & Measurement: Classifying Figures, Area & Volume
Classify 2-D figures hierarchically and find area and the volume of rectangular prisms.
Start this unit → - DataPDM5
Measurement & Data
Convert within measurement systems and represent and interpret data.
Start this unit →
Free Primary 5 practice questions
Try them on paper first, then open an answer to check your working.
What is 2.5 + 3.75?
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Answer: 6.25
Line up the decimal points: 2.50 + 3.75 = 6.25.
What is 6 + 4 × 3?
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Answer: 18
BODMAS: multiply before adding. 4 × 3 = 12, then 6 + 12 = 18.
What is 2/3 + 1/6?
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Answer: 5/6
Change 2/3 to 4/6, then 4/6 + 1/6 = 5/6.
What is 0.4 × 0.3?
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Answer: 0.12
4 × 3 = 12, and there are two decimal places in total, so 0.12.
What is the highest common factor of 12 and 18?
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Answer: 6
Factors of 12: 1, 2, 3, 4, 6, 12. Factors of 18: 1, 2, 3, 6, 9, 18. The biggest shared one is 6.
Simple prices for parents
Start with the first unit free. Then unlock one unit, or keep learning every day.
Unlock a single unit: every lesson and practice set in it.
Every unit, with streaks and progress. Cancel any time.
Two children cost ₦2,500 a month. Three cost ₦3,500.
Questions parents ask
Is it really free to start?
Yes. The first unit is free and needs no card.
Which classes does it cover?
Primary 3 to 6 on these pages, with more classes in the full Hour of Math library.
Can two children use one account?
Yes. Add each extra child for ₦1,000 a month.
Does it work on a phone?
Yes. Lessons are short and built to work well on a phone.
One short loop, every day
- 1
Learn
A short, step-by-step lesson in plain language.
- 2
Practice
Quick questions with instant feedback.
- 3
Master
A short check that unlocks the next step.
- 4
Keep the streak
Your child comes back each day, which is what builds the habit.