Use column addition to solve problems

Maths

Identify the addends and the sum in column addition

Use place value to correctly lay out column addition

Add 2-digit numbers using column addition

Add 3-digit numbers using column addition

Use column addition to add numbers by regrouping ones

Use column addition to add numbers by regrouping tens

Use column addition with regrouping in ones and tens

Use known facts and strategies to accurately and efficiently calculate and check column addition

Use column addition with regrouping to solve problems

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.

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

What is the missing addend in the column addition?

Jun arranges the number cards to make two 2-digit numbers. Which numbers would add to make the sum?

Jun arranges the number cards to make two 3-digit numbers. Which numbers would add to make the sum?

Which addition calculation is represented by the base ten blocks?

What is the missing sum in the column addition?

What is the value of the missing number in the column addition?

5. What is the missing addend in the column addition?

Use column addition to solve problems

Lesson outcome