Year 3 - Using number skills
Standard 3.NS.1.4 - Practice solving subtraction sentences to make a specific number up to 20.
Included Skills: Subtraction, Number Properties
Calculate using mental and written methods • Learners are able to: - find differences within 100 - use mental strategies to add and subtract 2-digit numbers - use partitioning to double and halve 2-digit numbers - define a negative number as being less than 0