Chain bigger numbers

Work out a chain of several operations in a row

You have 1 minuteAnswer as fast as you can!

Chain bigger numbers

Practice chains of addition and subtraction problems. A free mental math trainer for kids. (bigger numbers)

Choose a level

1. 3 numbers2. 4 numbers3. bigger numbers

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Is the trainer free?

Yes, Math4School is completely free — no sign-up, no ads, no hidden fees.

What age is it for?

For students in grades 1-4 (ages 6-10). Levels go from addition to 10 up to the full times tables.

How does a training session work?

Pick a level and solve as many problems as you can in 60 seconds. At the end you'll see your score and accuracy.

Does it work on a phone?

Yes, the trainer works in any browser — on phones, tablets and computers.