Primary 4 Mathematics Lessons and Practice
Primary 4 is where fractions and decimals start to appear together. Some schools call this class Basic 4. It is the same maths.
Primary 4 units
Open any unit to start. The first unit is free.
The units are being updated. Please check back shortly.
Free Primary 4 practice questions
Try them on paper first, then open an answer to check your working.
Fill in the missing number: 2/3 = ?/6
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Answer: 4
Multiply the top and bottom of 2/3 by 2 to get 4/6.
What is 6/8 in its simplest form?
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Answer: 3/4
Divide both 6 and 8 by 2.
What is 0.6 + 0.25?
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Answer: 0.85
Write 0.60 + 0.25 and add the columns: 0.85.
Tunde buys 3 exercise books at ₦150 each. How much does he pay?
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Answer: ₦450
3 × 150 = 450.
What is 5 + 3 × 4?
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Answer: 17
Multiply first: 3 × 4 = 12. Then add: 5 + 12 = 17.
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.