We can estimate the answers by first rounding both decimals to the nearest whole numbers and then finding the difference between them.

**Example:**

45.7 - 16.4 can be estimated by rounding each number to the nearest whole numbers 46 - 16

= 30

In this worksheet, students round two decimals to the nearest whole numbers before subtracting them.

**Key stage:** KS 2

**Curriculum topic:**
Number: Fractions, Decimals and Percentages

**Curriculum subtopic:**
Solve Rounding Problems

**Difficulty level:**

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