Practice Multiplying Decimals in Math

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

Multiplying numbers that contain decimal points by first multiplying as if they were whole numbers, then placing the decimal point in the product based on the total number of decimal places in both factors.

Think of 0.3 \times 0.4 as \frac{3}{10} \times \frac{4}{10} = \frac{12}{100} = 0.12. When you multiply decimals, you're working with fractions of 10, so the answer gets smallerβ€”not bigger.

Example 1

easy
Calculate \(0.4 \times 3\).

Example 2

medium
Calculate \(2.3 \times 1.4\).

Example 3

easy
Calculate \(0.6 \times 5\).

Example 4

medium
Calculate \(1.5 \times 0.8\).