About This Lesson
Lessons include: Add a three-digit number on a number line, hundreds then tens; Add a three-digit number on a number line, hundreds then units; Add a three-digit number on a number line, hundreds then tens then units; Subtract a three-digit number on a number line, hundreds then tens; Subtract a three-digit number on a number line, hundreds then units; Subtract a three-digit number on a number line, hundreds then tens then units; Write 4 calculations from 3 three-digit numbers; Solve missing number problems with three-digit numbers (number line); Subtract a three-digit number by counting forwards in units; Subtract a three-digit number by counting forwards in tens; Subtract a three-digit number by counting forwards in hundreds; Subtract a three-digit number by counting forwards, hundreds then tens; Subtract a three-digit number by counting forwards, hundreds then units; Subtract a three-digit number by counting forwards, tens then units; Subtract a three digit number by counting forwards, hundreds then tens then units; Subtract by counting forwards (crossing 100); Subtract a three digit number by counting forwards, targeting the tens and hundreds
