Primary 1 to 6

Singapore primary maths, worked out.

Help your child understand each step.

Work through a problem together, with diagrams and clear explanations. Then let your child try a similar question.

See the pattern. Then practise it.

See the working Build a worksheet

A worked solution, start to finish. Open it →

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Problem of the day One problem, worked out, free all day A different one every morning at the same address. Ask your child to try it on paper first, then go through the working together. Open today’s problem →

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Find what your child needs

Work through a solution together, make a practice worksheet, or explore a topic, pattern or skill.

Behind each problem are more questions like it, with different numbers. The ▶ beside one opens its drawing.

1026 Questions, every one worked out Every step, with the reason for it written beside it. Browse them by pattern, or print a sheet for tonight and watch any question your child got wrong. See the problems → Build a worksheet →

33 Patterns and skills The 19 patterns behind most Primary 5 and 6 word problems, and the skills the younger years are built on. See the patterns →

A worked solution

Follow the steps together

Each solution uses diagrams and explanations to show how the answer is reached. Use them to help your child understand the method. Here is one example, in four parts.

The question at the top of a worked solution. — **The question** In full, at the top, so your child can point at the sentence a step came from.

A bar model divided into four parts, three labelled chocolate and one almond. — **Bars, drawn to scale** The amounts as lengths. What is equal looks equal, and what is left over is a piece you can put a finger on.

A gold-boxed note: make every fraction count the same whole. — **The key step** The step that does the work, written out as one sentence. That sentence is what your child takes to the next question.

The final answer, boxed in red: Mrs Hoon sold 960 cookies. — **The answer** A full sentence, in the words of the question, so it is clear what the number counts.

See the working, step by step. Open this solution →

Worksheets

Make a worksheet

Choose questions for your child to practise. Print a worksheet with room to work, plus separate worked solutions to help you check answers together.

Choose the year. Primary 1–6.
Choose the questions. Pick topics or patterns and a difficulty, or generate a mixed set of eight.
Print. Include the worked solutions when you need them. Keep the link to print the same worksheet again.

Build a worksheet

Name: Date: 8 questions

Question 1

Ali had 3 times as many marbles as Ben. After Ali gave 24 marbles to Ben, the two boys had the same number. How many did Ali have at first?

Question 2

A tank was three-quarters full. After 18 litres were drawn off it was half full. How much does the tank hold?

✓ Working printed on the pages after, for you

Patterns and skills

Recognise the pattern. Understand the method.

Explore 33 patterns and skills, with worked examples to help you explain the method and your child practise it.

Units and parts 127 worked solutions

Large numbers and operation order illustrated in pencil.

Large numbers and operation order 104 worked solutions

Decimals and percentages illustrated in pencil.

Decimals and percentages 102 worked solutions

Seeing it move 47 worked solutions $P5 fraction foundations illustrated in pencil.$ P5 fraction foundations 38 worked solutions

Angle and shape properties illustrated in pencil.

Angle and shape properties 31 worked solutions

Explore all 33 patterns and skills →

Questions from parents

Stuck on a question? Send it to us.

Type the question or upload a photo. We review every submission, though we cannot solve them all. Selected questions are published with worked solutions for everyone to use.

Overlapping shapes — find A : B : C The shading is where two shapes overlap, so one area has two names — the shaded 1/6 of A is the shaded 1/5 of B plus the shaded 1/3 of C, and that single equation is what links three shapes that otherwise share nothing. Solved → Grid drawing: equal-area triangle without overlap Compare grid movements: equal or proportional right-and-up/down movements show parallel lines, which can prove both a trapezium and equal triangle heights. Solved → Rectangle ACEG — the shaded triangles Both shaded triangles have their base on the same line BF and X is its midpoint, so the two bases are equal (10 cm each) and the two heights are AB and BC — which add to the whole side AC. Where B sits on AC never matters. Solved →

All 19 sent in by readers →

What to send

The question, and the answer if you have it. If you were taught a particular method and want that one followed, say so — otherwise it is worked out from scratch.

Send in a problem

The 33 problem patterns

All 33 patterns, one to a page — the 19 behind Primary 5 and 6 word problems, and the skills the younger years are built on. The bar model, how to spot it in the question, and the mistake children make. A booklet you can print. Free.