PAIBOTLearn
Sign inSign up

Adding & subtracting within 10

Addition & subtraction

Japanese school year: Elementary 1

What you learn

Students practice addition and subtraction within the range of numbers up to 10, based on composing and decomposing numbers. These basic skills are essential for everyday tasks and form the foundation for future arithmetic. Being able to accurately count numbers from 1 to 10 will help you learn smoothly.

Go to practice

Key points

Adding 0 to a number a leaves it as a. Use this when nothing is added.

a+0=aa + 0 = a

Subtracting 0 from a number a leaves it as a. Use this when nothing is taken away.

a−0=aa - 0 = a

Subtracting a number a from itself always leaves 0. Use this when everything is taken away.

a−a=0a - a = 0

Addition and subtraction undo each other. Subtracting a from total c gives you b.

a+b=c  ⟺  c−a=ba + b = c \iff c - a = b

Choose a set to practice.