Year 2 Estimating addition and subtraction calculations

Year 2 Maths Number
Estimating calculations by rounding to the nearest multiple of 10 first. This resource has differentiated activities for children to solve an equation by rounding. They then write a reasoned answer about which answer is the closest. e.g is 12 + 9 closer to 20 or 30? children select 30 and write a sentence e.g 12 rounds down to 10 and 9 rounds up to 10 so 20 is the closest answers.
children working at greater depth have further opportunities to round, reason and also use the > and < sign to select the appropriate answer. This is a challenging activity for all levels. Children will be able to develop fluency with estimating and rounding. They will need a pre-teach lesson about rules of rounding prior to this. Suitable for the new Year 2 curriculum and meeting ITAF standards.