Review identifying the minuend and subtrahend in column subtraction

Maths

Review column addition and identify the addends and sum

Review and use knowledge of place value to correctly lay out column addition

Review adding 2-digit numbers using column addition without regrouping

Review adding 3-digit numbers using column addition without regrouping

Use column addition to solve problems in different contexts

Review using column addition to add 2- and 3-digit numbers by regrouping ones

Review using column addition to add 2- and 3-digit numbers by regrouping tens

Review using column addition with regrouping in the ones and tens columns

Review using known facts and strategies to accurately and efficiently use and check column addition

Use knowledge of column addition to solve problems in a range of contexts

Review using column subtraction to subtract without regrouping

Review using column subtraction with regrouping from tens to ones

Review using column subtraction with regrouping from hundreds to tens

Decide on the most efficient subtraction strategy, including column subtraction

In this unit pupils will revisit column addition with regrouping and column subtraction with exchanging to solve problems. In the future unit pupils will consolidate column addition with regrouping and column subtraction with exchanging to solve problems. They will use known facts and strategies to accurately and efficiently calculate and check.

In the prior unit pupils identified the minuend and the subtrahend in column subtraction and explained the column subtraction algorithm. They subtracted from a 2-digit number using column subtraction with exchanging. In this unit pupils will revisit column addition with regrouping and column subtraction with exchanging to solve problems.

In this unit pupils will revisit column addition with regrouping and column subtraction with exchanging to solve problems.

Review of column addition and subtraction

Which number is the minuend in this part-part-whole model?

Which number is the minuend in this column subtraction?

What is the name of the part that is circled in the column subtraction?

Which number is the subtrahend in this equation: 36 − 16 = 20? 

Look at this column subtraction. 
Match up the numbers with the correct name.

Which column subtraction calculations are correct?

Which number represents the whole in this part-part-whole model?

Which number represents the whole in this bar model?

Which number represents the whole in the equation 44 − 31 = 13? 

Which number represents the whole in the equation 30 = 53 − 23 

Complete each equation by matching up the expressions.

What is the missing whole in this equation?

Review identifying the minuend and subtrahend in column subtraction

Lesson outcome