What are two-digit numbers?
Two-digit numbers are the numbers made up of tens and ones.
Example:
Adding two two-digit numbers
We can split the numbers into tens and ones to add two two-digit numbers.
Example: 35 + 42
Subtracting two two-digit numbers
To subtract two two-digit numbers, we can split the numbers into tens and ones.
Example: 78 – 25
78 – 25 = 53
Let's try a question.
Question: Who has more money?
Sophia has £36 and her mother gave her £21 more.
Poppy has £24 and her mother gave £32 more.
Sophia:
30 + 20 = 50
6 + 1 = 7
50 +7 = 57
Poppy:
20 + 30 = 50
4 + 2 = 6
50 + 6 = 56