Add and subtract numbers with up to 4 digits using the formal written methods of
columnar addition and subtraction where appropriate
Investigation: Complete the question
Find the missing digits to complete the number sentence.
Explain your method for finding the answer.
Is there another method that you could use?
Can you create a number sentence of your own for somebody else to answer?
57 186 + 62 329 = 119 515. There are a number of ways to complete this but the most popular way would be using the formal method and inverse operations to find each missing digit.