L5 Find 10 More

This Year 3 maths lesson helps children understand how to find 10 more than a number, building on their previous learning from Year 2. The lesson begins with a starter activity reviewing counting in tens and numbers within 100, using a hundred square to notice that the tens digit increases by 1 while the ones digit stays the same. In the introduction, students extend this concept to numbers greater than 100, learning to find 10 more using Base 10 equipment and place value charts instead of a hundred square. Animated slides demonstrate numbers such as 203 through 293, highlighting common misconceptions, such as incorrectly changing a 9 to 10 in the tens place. Students practice making exchanges correctly—turning 10 tens into 1 hundred—and visually see how numbers change, e.g., 293 becomes 303. During the main activity, children use three dice to generate a 3-digit number and then write 10 more than each number, reinforcing systematic working and a clear understanding of place value. The lesson challenges students to notice how the tens digit changes and when exchanges affect the hundreds digit. The plenary consolidates learning by discussing numbers that require exchanges, checking that children can identify when the tens and hundreds digits change correctly. Common misconceptions are addressed, including adding 1 to both tens and ones digits, confusing adding 10 with multiplying by 10, or counting up in ones instead of tens. This resource is perfect for teachers seeking an interactive, structured Year 3 lesson on finding 10 more, place value, and addition within 1000.