Multiply by 100 and 1000

All these questions are about mentally multiplying by 100 and 1000, including decimals.

Create my FREE account

including a 7 day free trial of everything

Email Address

Password

Newsletter

The URBrainy email newsletter (sent every 2 weeks) provides resource updates and helpful guides for teaching and learning.

Yes, I would like to receive the URBrainy newsletter.

I agree to the Terms and Conditions and Privacy Policy

Already have an account? Sign in

When multiplying 2-digit numbers by 1-digit in your head usually it is easier to start with the tens.

Multiplying three digit multiples of 100 is fairly easy, but there are some addition adjustments to make on some of these.

Using mental methods to multiply decimals by 10, 100 and 1000.

Multiplying large numbers by 100 and 1,000.

The latest news, articles, and resources, sent to your inbox weekly.