Subtraction sums up to 20

The 5-step plan

Practice subtraction up to 20 using the five steps. You can earn medals for the first four steps, and you get a diploma if you complete the final step correctly. For addition sums up to 20, none of the answers will be higher than 20.

The first step consists of ten sums. There is no time limit.

Step 1

Step 2


Step 3

Step 4

Try to answer all the 15 questions right!

Step 5

Answer all the 20 questions right to get the diploma!

Subtraction up to 20 diploma

Description Subtraction up to 20

Practice subtraction using the five-step plan. You start with four different kinds of exercises that let you practice subtraction sums up to 20. Once you can do these well enough, you can try to earn the diploma.

Examples of sums you'll be given:

  • 17 - 2 = 13
  • 12 - 7 = 5

By completing the exercises, you can earn medals and increase how fast you can do subtraction.