Add 2-digit numbers using column addition

Maths

In this unit pupils will identify the addends and the sum in column addition. They will use their knowledge of place value to correctly lay out column addition. In the future unit pupils will identify the minuend and the subtrahend in column subtraction and explain the column subtraction algorithm. They will subtract from a 2-digit number using column subtraction with exchanging.

In the prior unit pupils accurately and efficiently solved multi-step addition and subtraction problems. They understood and explained how both addition and subtraction equations could be used to describe the same additive relationship. In this unit pupils will identify the addends and the sum in column addition. They will use their knowledge of place value to correctly lay out column addition.

Column addition

Which addition calculation is represented by the base ten blocks? 

Which two addends are added in this column addition? 

What is the missing sum in the column addition?

What ones digit is missing from this column addition? 

What is the missing addend in this column addition? 

What is represented by the digit 5 in 56?

What is represented by the digit 2 in 256?

Which calculation matches the base ten blocks representation? 

Which calculation matches the column addition?

Which two numbers are being added in the column addition?

This lesson will soon be taken down.

Add 2-digit numbers using column addition

Lesson outcome