Adding tens No.4

Count by 10s No.1

Count by 10s No.2

Adding tens to two digit numbers

At the swimming pool – Addition and subtraction of tens

Subtracting tens up to 100 No.5

Counting by 5s to 240 sheet 3

Counting by 5s to 240 sheet 4

In the Classroom – Addition problems of 10s up to 100 – No.1

In the Classroom – Addition problems of 10s up to 100 – No.2

Adding and Subtracting one digit from two-digit numbers No.2