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Explore multiples of ten, including counting in tens to 100; apply number facts within ten to addition and subtraction for multiples of ten.
Teaching point 1: One ten is equivalent to ten ones.
Teaching point 2: Multiples of ten can be represented using their names or using numerals. We can count in multiples of ten.
Teaching point 3: Knowledge of the 0–10 number line can be used to estimate the position of multiples of ten on a 0–100 number line.
Teaching point 4: Adding ten to a multiple of ten gives the next multiple of ten; subtracting ten from a multiple of ten gives the previous multiple of ten.
Teaching point 5: Known facts for the numbers within ten can be used to add and subtract in multiples of ten by unitising.