Tenths Estimation Real-Life

Name:

Date:

🛒 Part 1: Shopping Estimation

1. A book costs $7.49, a notebook costs $4.62, and a pen costs $2.78. What is the best estimate for the total cost rounded to the nearest tenth?

$14.8

$14.9

$15.0

$15.1

2. If a pencil costs $1.35, approximately how much would 4 pencils cost? Round to the nearest tenth.

$5.2

$5.4

$5.6

$6.0

3. Sarah has $20.00. She wants to buy items costing $6.78, $4.23, and $8.91. Estimate if she has enough money by rounding each price to the nearest dollar.

4. Show your working for question 3:

📏 Part 2: Measurement Estimation

5. A table is 1.48 metres long and a bench is 0.87 metres long. What is their combined length rounded to the nearest tenth?

Combined length: _______ metres

6. A recipe calls for 2.3 litres of milk and 0.75 litres of cream. Estimate the total liquid needed by rounding to the nearest tenth.

Total liquid: _______ litres

7. Tom measures his bedroom as 3.67 metres by 4.23 metres. Estimate the perimeter by rounding each measurement to the nearest tenth first.

8. Which rounding strategies are most useful in real life? Tick all that apply:

Rounding to nearest dollar when shopping

Rounding to nearest tenth for precise measurements

Rounding to nearest whole number for quick estimates

Using tenths when accuracy is important

🧠 Part 3: Problem Solving

9. Jake is buying paint. He needs 2.67 litres of blue paint at $8.45 per litre and 1.34 litres of white paint at $7.89 per litre. Estimate the total cost by rounding all amounts to the nearest tenth.

10. Explain why estimation using tenths is useful in everyday life. Give one specific example.