Sum It Up Word Problems
Sum It Up questions turn everyday situations into arithmetic word problems. The key is to identify what each number means, choose the correct operation, and keep the unit attached to the final answer.
The Rules Every Word Problem Uses
Word problems are not just calculations written in sentences. You need to translate the story into operations, then check that the answer matches the question being asked.
🧭 Rule 1: Identify the question
Before calculating, find what the problem actually asks you to work out.
Example: "How much is left?" means subtract after finding the starting total.
✖️ Rule 2: Groups usually mean multiplication
If the same amount appears several times, multiply before adding or subtracting extras.
Example: 5 batches of 10 cupcakes gives 5 × 10.
➗ Rule 3: Sharing or filling means division
Use division when a total is split equally or a larger amount is divided into smaller amounts.
Example: 5000 ml ÷ 40 ml tells how many teaspoons fit.
🏷️ Rule 4: Keep the unit
The final answer should say pounds, cupcakes, markers, spoons, trees, or another unit from the question.
Example: 52 is not enough; the answer is 52 cupcakes.
How to Solve Sum It Up Word Problems
Three useful moves: translate the story into operations, calculate in the right order, and check the unit at the end.
1. Multiply, Then Add an Extra Amount
Question: A baker makes 5 batches of cupcakes. Each batch has 10 cupcakes. He then adds 2 extra cupcakes to the total. How many cupcakes does he have in total?
Worked Method
Step 1: Find the cupcakes from the batches: 5 × 10 = 50.
Step 2: Add the extra cupcakes: 50 + 2 = 52.
Step 3: Keep the unit in the answer.
Answer: 52 cupcakes
2. Combine Two Days, Then Multiply
Question: A restaurant serves 96 customers on Saturday and 25 customers on Sunday. If each customer pays an average of £7, what is the projected revenue for both days?
Worked Method
Step 1: Add the customers: 96 + 25 = 121.
Step 2: Multiply by the average payment: 121 × £7 = £847.
Step 3: The question asks for revenue, so the answer is money.
Answer: £847
3. Convert Units Before Dividing
Question: A teaspoon holds 40 ml of liquid. How many teaspoons can be filled from a 5 litre bottle of medicine?
Worked Method
Step 1: Convert 5 litres to millilitres: 5 litres = 5000 ml.
Step 2: Divide by the amount in one teaspoon: 5000 ÷ 40 = 125.
Step 3: The answer counts teaspoons.
Answer: 125 teaspoons. The trap: Dividing 5 by 40 before converting units gives the wrong scale.
Before You Buy
Want to check the level and layout first? Download the free 3-question sample. It uses the same question style, printable format, and answer-key approach as the full pack.
Download Free Sample PDFGet the Full Practice Pack
The full Sum It Up pack contains 75 real-world word problems across 3 printable test sets, with answer sheets included for quick checking.
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